After acheiving climax by receiving oral sex the man pulls out his semi-flacid penis from her mouth and slaps it around her face. Leaving a mark in the shape of a mushroom.
Marlene give me a great blow job last night. When she finished swallowing I pulled it out and gave her a mushroom tattoo on the side of her face. You can still see it this morning
when someone (mainly a guy) trys to suck your dick and u smack 'em in the forehead with your wang. it leaves a mushroom-shaped mark.... hence mushroom tattoo
last night this fag was tryin to blow me and i gave that biutch a mushroomtattoo!!