the noise made after doing something wrong without noticing.
Bob poured Grape juice in the candle instead of the cup. When his friend opened the door, the only thing to be heard as a loud "fuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu"
by Elonn Mussk November 21, 2017
Get the fuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu mug.