look up any word, like bae:
The deep sound made when a whistle'r is put on a muffler.
From Bubb Rubb and lil sis "thats early in the mornin, its like an alarm clock, WOOP WOOOOP!
by Spencers April 05, 2006

Words related to WOOP WOOOOP!

loud muffler noise noise sounds wooping