Somebody who is an absolute unit at pooning. Alternatively, someone who has a poonit has an absolute unit of a poon. The other equally as accepted spelling is punit.
"Ah bruv, ma man's an absolute poonit - look at him!" or "Nah bruv the sex was bare rank, she had a poonit."
Mr. Garrison: "Yeah, I tell you, boys, women can kill. Poontang's expensive. That's why when it comes to chicks, I just screw 'em and leave 'em. I say, ‘Get out of my bedroom, poontank, before you suck my life dry.’"
Rough anal intercourse, usually performed as punishment for those who are unfortunate to enter enter the Poontah Tribe's sacred territory. It involves the whole group of whoever stepped into their territory strapped to a log and given two choices. Death... or Poontah. Most given these choices are unaware of the true nature of the word Poontah, and are buttfucked by the whole damn tribe (except the chieftain.) Those who survive the hard Poontah feel the cum from the tribe's collective climax alter their DNA, and in 20-ish minutes become another member of the tribe.
Chieftain: Skinneh Man... what do you choose? Poontah..? or DEATH?!
Algebra Teacher: Well, I don't want to die, but I don't know what Poontah means...
Chieftain: *silence*
Algebra Teacher: Alright, fine! I choose Poontah. How bad could it be?
Chieftain: HE CHOOSES DE POONTAH!
Entire tribe: *applauding whilst stripping him ass naked*
An extremely fortunate situation, comprising of a group of two or more single and available females. Especially related to girls attracted to other girls, or overwhelming nudity.
A gesture made with the hand by placing the tips of the thumb and index finger together. Like forming the "okay" sign but shown from the backside and below the shoulder. The idea is to get another person to glance at it, earning the right to punch them in the arm. The poonstance can be negated however by the viewer putting his finger through the ring that is made by the thumb and index finger. From a game often played by young adult males.
That guy just flashed me the poonstance and I looked right at it.