Reaching around your ass and grabbing your balls while letting your dick (preferably hard), rest on your fist. To simulate the middle finger giving some one the bird.
"Dude I gave my boss the 'dirty bird', after he fired me for sleeping in one of his boring meetings."
by Same Welton May 14, 2021

by lil_BIG_dick January 17, 2018

by strong badian February 29, 2004

“Something in that dirty bird has given me the old squirty bird. I’ve been destroying toilets for the past 2 hours…”
by Xx_Daniel December 28, 2023

by mcstiffins27 September 7, 2019

by myfavsexpositioniscryingalone April 15, 2015

