Top definition
To get a blowjob from two girls. One wearing black lipstick and the other wearing white. After recieving the blowjobs,
the lipstick rubs off on the penis. It now looks monochrome; Black, White, and Grey
Dude1: Man i got a monochrome blowjob last night and i thought i was in an old picture.

Dude2: Shweet
by Halleeman June 19, 2009
Get the mug
Get a Monochrome Blowjob mug for your guy Julia.