look up any word, like donkey punch:
 
1.
adv.
1. Used to express approval or agreement.
adj.
2.Correct.
n.
3. The noise you hear befor you die.

*note
May be used twice in succession
1."Dude, you wanna go pollute that swamp later?" "Pwch Pwch".
2."What is the sum of 2&2?"
"4." "Pwch Pwch".
3. "Pwch Pwch" - SPLAT!
by Matty-Matt October 12, 2004