Jake: Yo Luke, I'm starting a MDF challenge tomorrow. Wanna join?
Luke: What's MDF?
Jake: Men Don't Fap
By Ninon
MDF
Mini Dildo Forking, the act of sticking a mini dildo onto a fork then placing them in a formation on someones lawn. When the wind blows the dildos sway in the wind. Penises in the wind.