To illegaly steal some sort of sheep off of a farm, without anyone looking. Signs of this happening is usually some guy standing on his porch with a shotgun, looking for his fucking animals.
I once met this goatnapper, and he used my animals to pleasure his peepee
its what your supposed to say when your about to take a nap,because when you say goodmorning your waking up and when you say goodnight your going to sleep at night!
Steve: I'm going to take a nap.
Susie: I think I will too.
Steve: Okay,goodnap!
Susie: Goodnap!
When you exhausted but not fatigued enough to be able to fall asleep, so you tucker yourself out with a goon (and maybe wipe the discharge on you as a face mask)
"Yo, I'm tired but can't seem to gts"
"Try goonnapping!"
"Shi u rih, Ima make it a real workout fr"
"Bet. Goonnap"
"Goonnap!"