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8.
Something called out in celebration. Also a way for Juggalos to identify one another.
Tesla - "Hey look, there's a Juggalo over there."
Ryan - "Woop-Woop!!"
*commence the gathering*

-or-

Tesla - "I got an A on this test, dude."
Sam - "Woop-Woop!!!"

by Tesla L October 16, 2007
 
9.
Woop Woop!, is a feeling of joy and can often exclaim ones amazment. A general happy exclamation.
Woop Woop! I won! Thats Amazing, Woop Woop!!
by RebelPenelopy September 07, 2008
 
10.
Used in Python programming circles to avoid saying "underscore".
__init__ is pronounced "woop woop init".
by Rijel April 13, 2012
 
11.
A place a long distance from an 'urban' centre.

Typically used to describe Outback Australia.
A: I'm gonna be moving soon - new job.
B: Oh yeah? Where'ya goin'?
A: Small place, out woop-woop. Money's good, though.
by LordDeathKill May 09, 2007
 
12.
An internet term popularized by, *Tony Huynh,meaning excitement,and or,the feeling of accomplishment,FTW

*TheWineKone
n00b 1:I just killed my first orc!!!

mom of n00b:woopwoop
by LOLZER828 January 18, 2009
 
13.
this shows a feeling of extreme excitement!!!
yo g, im excited for bassline woop woop woop
by bekki and clare March 05, 2008
 
14.
the act of and insult not hitting its mark because of the intence stupidity of the intended victim. usually used in conjunction with a movement of the open palm over the head twice.
hey, i just said to that fag "i pumped yo mumma all night long!"
and?
he was like "my mummy sez im the coolest kid in school!"
wow, it really went woop-woop over that guys head.
by Bernard P June 22, 2007