2. (v.) A complex variation of "mooning" in which one applies the flesh of one's bare buttocks (usually the hairier buttocks of the male) directly to the face of the victim, especially when the victim is seated on the floor and distracted. To apply one's buttocks to the back of the NECK of someone seated on the floor is known as a "reverse Grundel."
1. An area of skin between the legs and also between the anus and the sex organ.
2. A Combative, authoritative, pompous, superficial individual who is prone to overgeneralize topics and predisposed to utilize fallacious logic to further an argument.
Grundel Bob: You guys look like pussies, ya wanna fight?
Man #2: Man, here comes grundel Bob again. All he wants to do is fight.
Grundel Bob: You guys look like a couple of homosexuals, I can tell based off your haircuts. Ya wanna fight?
Man #1: Grundel Bob, why do you keep starting fights? You're such a grundel!
Grundel Bob: Well I could say the same thing about youuuuu.