>>95324419Wrong wrong wrong wrong WRONG
Holy fuck dude you couldn't be anymore wrong.
This stems from the first season, either the second or third episode.
Slumber Party.
In the beginning of the episode Tommy asks Angelica what a slumber party is and she replies with the quote.
At the end he asks if all slumber parties are like that and she replies, "I told ya, if you have to ask, you'll never know."