To understand the lyrics, read the MEANING section first.

LANDSLIDE= When it rains a lot, sometimes part of a hill may collapse and all the earth or sand comes down destroying everything in its way. An avalanche is made of snow, a landslide is the same but with earth (when the land slides).

SYMPATHY= Compassion. A mixture of love and understanding.

EASY COME, EASY GO= Someone who thinks that everything is easy to achieve, especially earning money, and who therefore does not worry about it and doesn't fight to lose it.

LITTLE HIGH, LITTLE LOW= No idea about this phrase, it probably means he's average, just a normal person or, more literally, neither happy nor sad (a little of both).

ANY WAY THE WIND BLOWS DOESN'T REALLY MATTER TO ME= I don't care about anything, I just want to live my own life and I don't care about what happens around me.

MAMA, (I) JUST KILLED A MAN= The first part of the song he was talking about himself, he is just a simple man but the outside pressure is overwhelming, too strong for him (caught in a landslide). With this line, a new section begins. He's now talking to his mother, telling her that he's killed a man. That man is himself, his old self. He's telling his mother about his homosexuality (possibly) and he's very sorry that information is going to hurt her (didn't mean to make you cry).

PULLED MY TRIGGER= Shot the gun. The trigger is the little tab you pull to make a gun shoot.

NOW I'VE GONE AND THROWN IT ALL AWAY= Now I've spoiled/ruined everything, it's a disaster.

[I] DIDN'T MEAN TO MAKE YOU CRY= It wasn't my intention to make you cry.

CARRY ON= Continue (with your life).

[IT] SENDS SHIVERS DOWN MY SPINE= Your spine is the column of little bones that support your back. If something sends shivers down your spine, you feel like some energy, or coldness, or fear is quickly moving down your spine. But we use this figuratively to say that we are afraid or excited, we feel an intense emotion.

ACHING= /eɪkɪŋ/ hurting. If your body's aching you feel pain all over your body.

GOTTA LEAVE YOU ALL BEHIND AND FACE THE TRUTH= (gotta = I've got to, I must) He has to say goodbye to his old self, but also to his family, or at least goodbye to the old relationship he had with himself and with his family. Everything will change now, and that really hurts. It's so painful that he feels he's not ready for a thing like this (Mama, ooh, I don't want to die / I sometimes wish I'd never been born at all).

And now the third part starts. In the first part he talks about himself, in the second part he talks with his family, and now he talks with society. But society here appears in the form of a jury at a trial, judging him and accusing him of monstrosity.

SILHOUETTO= This word is not English, the correct word would be SILHOUETTE, which means an outline of something and is usually filled in with a darker colour (see picture). He changes the word a bit to make it sound Italian (the language of the opera) and now he's going to introduce some more Italian or Italian-sounding words.

SCARAMOUCHE= A roguish cowardly burlesque buffoon character in the Italian "commedia dell'arte", something similar to a modern clown. The typical aspect of this character is that it makes people happy while being sad in its heart. Mercury himself lived like a Scaramouch; he entertained people and gave joy to them privately and with his music, but deep inside he was lonely and rather unfortunate in his relationships.

FANDANGO= Another Italian-sounding word, but this time it is Spanish. It's the name of a lively folk dance, often confused with "flamenco" (though they're two different styles). Asking Scaramouche to dance fandango is simply asking him to do something funny to make us laugh. But a colloquial meaning of the word "fandango" is "nonsense", so that may also be the meaning here.

THUNDERBOLT= Lightning (see picture)

LIGHTNING= A very bright flash of light you can see in the sky during some storms caused by a sudden discharge of electricity in the clouds (see picture) .

FRIGHTENING= Scary. If something is frightening, you feel very scared/afraid of it.

GALILEO= An Italian astronomer from the 16th century.

FIGARO= A male character from a famous Italian Opera, "The Weddings of Figaro", who was a hairdresser from Seville, in the south of Spain.

MAGNIFICO= This word is Italian (or Spanish) and it means "fantastic, wonderful".

SPARE HIM HIS LIFE= The expression "spare me" means "don't kill me", so this sentence means: safe his life.

MONSTROSITY= The condition of being a monster. SPARE HIM HIS LIFE FROM THIS MONSTROSITY= Save him from this monstrosity.

EASY COME, EASY GO= A common expression meaning that you don't appreciate the things you get with no effort, so you don't work hard to keep them and you lose them easily.

BISMILLAH= An Arabic expression (also used by Parsis, Freddy Mercury's  Indian family) which is the opening word in the Qu'ran (Koran) and literally means "In the name of Allah."

MAMA MIA= An Italian expression that means "oh my God!".

BEELZEBUB= One of the names of Satan, the Devil, the incarnation of evil and wickedness.

DEVIL= An angel of evil, server of Satan.

BEELZEBUB HAS A DEVIL PUT ASIDE FOR ME= Satan has a devil specifically for me. To put something aside is to reserve it for later use.

STONE ME= Kill me by throwing stones at me (a traditional way of killing people found guilty by Islamic law).

SPIT= To spit is to eject saliva from your mouth, as a way of insulting and humiliating someone.

GOTTA GET OUT= I have to get out, I must escape.

OUTTA= (coll.) Out of.