A wet willy but in your butt.
by Danger City August 22, 2014
Get the Brown Billymug. by skanky mut November 22, 2021
Get the Billy Kovacevicmug. by Asian alcoholic November 18, 2023
Get the Billymug. by I_touch_kids-123 January 14, 2022
Get the Billymug. When a group of senior men over the age of 70 run a train on your girl. The term is from how one of the oldest steam trains is called The Puffing Billy, and how some of those 80 year old weenies let out a puff of air instead of a cumshot upon finishing
My ex gf said she was going to the retirement home to volunteer, but it turns out she was there to let a bunch of old heads run the puffing Billy on her
by comicsansessay39 June 29, 2025
Get the Run the puffing Billymug. 
