Define Resemblance Nut Block Meaning

Resemblance Nut Block
When you're about to nut but the model in the porn you jerking off reminds you of someone so you stop.

Male 1: Dude i was fapping to Piper Perri but she reminds me of Samantha so i switch to another chick
Male 2: So Samantha resemblance nut block you?
Male 1: pretty much
By Jorrie