One who is all knowing about weed and different methods of toking. Every stoner has a friend who is a Ganjaseur.
Dave: Hey man, do you know what kind of bud this is? Or the best way to toke?
Mike: Naw, not by eyeing it, but my friend Alex is a Ganjaseur, he'll know for sure.
1. an insult for a homosexual person
2. just something you call someone you hate very much, who you think is both gay and an ass
3. george dubya bush
1. so i made out with a guy? im no gayass, i was just drunk 2. brad has been such a gayass, im gonna cap that muthafuckin lil bicthy 'tard.
3. george dubya bush is such a gayass, the war in iraq and 9-11 are both his fault. if you like bush you are either a gayass or a dumbass. or both.