Inserting anal beads into Dave Chapelle's ass until he shits all over them, and then pulling them out with your face below the anus so the shit releases all over your face.
Yo, did you see Dave Chapelle's comedy show last night? He was inviting people to come backstage afterwards and give him a Dirty Dave, and when I did my face was so covered in shit I almost looked like him!
The act of excessive masturbation without any lubrication until your penis is very swollen the Night before a big date to give the illusion that you’re cock is thicker than it actually is.
“Hey man. Are you ready for your big date later today?” Oh yeah. I did the ol’ Dirty Davey last night. I can’t wait to see the look on her face.