look up any word, like darude - sandstorm:
 
1.
(aka Washington and Huron) New, cool student apartments for U of M in 2015.
I can't wait to move into WAHU with my friends!
by sororitygrl143 June 04, 2014
4 0
 
2.
We All Hate You
WAHU can be an annoying ass dumb bitch, that tries to sleep with everyone, and no-one likes because of it. A stupid cunt that bangs on ones door to try and sleep with them at 8 in the morning.

"Hey WAHU!"

The classic facebook WAHU defriend, where you write WAHU on their wall and then defriend them.
by everyone@odu February 28, 2009
4 1
 
3.
a)A noise that you make when there is an awkward silence and someone barks in the background.

b)A noise you make when you are bored or yeah some stupid shit.
bloke: what you doin' tomorrow man?
*awkward silence*
*man barks in background*
other bloke: WAHU!!!
6 3