A fat f*ck.
An idiot or someone you dont like.
Are you joking
Really nice
Its an insult, its describes someone as being a goof or just a bit of a mess in general
"Are you feeling ok because that's a really stupid idea"
You would like to have sex with someone
When someone is in need of sex Or lusts for someone.
When a sexually active girl is on her period, and gaggin' for it, but can't.