I THREW A WISH IN THE WELL= A wishing well is a term from European folklore to describe wells where it was thought that any spoken wish would be granted. The idea that a wish would be granted came from the idea that water housed deities or had been placed there as a gift from the gods, since water was a source of life and often a scarce commodity. Of course, we’re not talking about the adverb “well” (as in: You dance well) but the noun “a well” (see picture).
But Carly talks about “throwing a wish in the well”, not speaking it aloud. Being herself far from European lands and medieval times, she may be easily forgiven for her mistake. She’s obviously mixing the superstition of the wishing well with the other more modern superstition of throwing a coin to any water place to make a wish (as people still do in the Fontana di Trevi)

DON’T ASK ME= Traditionally, when you make a wish (when you see a shooting star, or when you blow the candles of your birthday cake or when you throw a coin into the water) you can’t tell anybody what you wished for. If you tell, the wish will never come true, so the superstition goes. Actually, chances for it to come true are equally low whether you say it or not, but if you’re going to be superstitious, at least be properly superstitious and keep it a secret.

I LOOKED TO YOU= The verb "look" uses the preposition "at" (I looked at you). We say "look to" when we look for guidance (We all look to certain people to help us in life). But in this case, "to" is simply the short form of "towards", expressing direction (I looked to you = I looked towards you, in your direction).

AS IT FELL= While it was falling.

YOU’RE IN MY WAY= I met you, you came into my life, you’re here.
Here, “my way” refers to “my life”, seen as a way we travel from the cradle to the grave. If you're in my way, our paths have crossed, life has brought us together.
But there's also a negative meaning for this expression: “you’re in my way” can also express the idea that you are in the middle of my way, so you are bothering me, you stop me from continuing my way, you must move away so I can continue forwards (not the case here, obviously).

TRADE= Exchange. I give you A and you give me B.

PENNIES= In colloquial American English a penny is a cent, and the plural is pennies. In standard British English a penny is a real coin and the plural is “pence”, 100 pence make one pound (but today we usually say “p” for both, so we say 1p. and 25p., pronounced “pee”, like the letter of the alphabet)

DIMES= In AmE a dime is a coin worth 10 cents. (see picture)

I WASN’T LOOKING FOR THIS= This was unexpected (but I’m glad it happened).
She said that she wanted to trade her soul for a wish, and now we know what her wish for: “pennies and dimes for a kiss”, she threw some pennies and dimes into the wishing well and wished for a kiss, and now, here he is, although she wasn’t really expecting her wish to come true.
Well, maybe she’s the queen of wishful thinking anyway, since the boy is there alright, but nobody said that he's going to kiss her.

STARE= /steə*/ To stare is to look intensely, without blinking. A stare is a look like that. If you hold your stare, you continue staring, without looking away. So when she says “you’re stare was holding” she suggests that he looked at her for a long time, or what seemed to her a long time (if you hold your stare, you keep staring for some time, without looking away).

RIPPED JEANS= Jeans that are broken in some parts, as if worn out, but not really, because the rips are factory-made and they make the trousers to be more expensive. (see picture).

SKIN WAS SHOWING= People could see the skin of his legs showing through the rips of his jeans.

WHERE YOU THINK YOU’RE GOING?= (it should be: “where do you think…”). This question is often used meaning: Don’t move!
This question, used in this sense, can only be used by someone in authority, someone who can actually force that person to stay. In this song, when she says this question she really means: hey boy, don’t go away, you have to stay here with me (whether you like it or not). Again, wishful thinking.

I JUST MET YOU= I met you only a moment ago.

MY NUMBER= My telephone number.
RIGHT= If you look right at something, you look straight into it, directly, without hesitation, openly.

CALL ME, MAYBE?= Maybe you can call me, if you want.

CHASE= To chase is to go after something trying to get it. For example, cats chase mice and lions chase gazelles because they want to eat them. Boys chase girls because they want to kiss them or whatever.

YOU TOOK YOUR TIME WITH THE CALL= You didn’t call me soon, a long time passed before you called me (or you never called me at all -which is what happened in this case).

THE FALL= The act of falling in love.

FORESIGHT= The ability of knowing the future consequences of a present event.

SO BAD= Very much.
We use “so bad” with the meaning of “very much” with some verbs, usually verbs expressing a strong emotion related with love:
- I love you so bad = I love you very much
- I need you so bad = I need you very much
- I miss you so bad = I miss you very much