parm bum

A parm bum is basically a saggy buttock that looks like someone took a chicken parmesan and lifted it up sideways so that all the sauce and cheese slid off slowly. This is what a parm bum looks like.

Manager: I was gonna tap that ass last time but then my employee had a parm bum so I had to get out of that warehouse.
Random Stranger: What?????? Weird flex but okay.