Verb. The act ejaculating on an erect penis. Can be a solo endeavor, but usually follows vaginal and/or anal missionary sex. See also; Greasing the Pole, and Buttered Sausage.
I accidentally walked in on Gerald “painting the shaft” after he pulled out of Mikey’s asshole and nutted all over his boner.
by Grundlethunder October 21, 2025
Get the Painting the Shaftmug.