The bigmac slap is where you get a morbidly obese person to eat 5 Bigmacs and then to slap his man tits continuously on a womans face.
Dude, I saw this huge motherfucker last night. I hit him up for Mcdonalds and had a wonderful night of Bigmac slaps.
by i.like.your.mum July 24, 2009
I couldn’t believe it bro, not only did she let me smash, she let me Big Mac Slap my fat gut on her back
by Bigmacslapdaddy July 03, 2018