A very dry joke that buzz kills your entire day. A term used to embarrass someone who makes a terrible joke.

(in forums)

Grandparent - the posting above the one you're replying to. Occasionally seen with multiple Gs for greater depth - i.e. GGP for great-grandparent, GGGP, for great-great-grandparent, etc.

g.p's is an acronym which stands for granny panies.
and if you don't know what granny panies are than you have two options, #1 look it up on the urban dictionary or #2 go through your grandma's drawers, im 100% you'll find one there!

“Good point”

"Grind Penis"
you go to a party and scope out one HOT guy and if you 1)dance with him 2) kiss him 3) hit home base you have officially gp'ed the guy

to keep it a secret; on the down low.

GP is a acronym for group poop or group pee. It is when a group of some kind dumps their load together. Most of the time during the group poop there are other activities the group participate in. For example talking, laughing, fighting, holding hands, kicking others while they are peeing in a urinal and making them pee on the wall etc.