I think for a lot of kids that sneak drinks it's more because they're "not allowed" so they feel ever so cool and rebellious.
I remember being pre-teen and me and one of my friends were absolutely not under any circumstances allowed to swear ever for any reason, so of course whenever we were hooning around on our bikes we were going out of our way to make every second word a cuss because we were so terribly cool like that XD
You must have done a great impression then, I mean fish say blub right XD
What does the fox say? :D