Jack Smitty 

A type of person who has no identity of their own, and feeds off of the personality of others; total copy-cat.

Wow, only after I went to the Rise Against concert did he start wearing Rise Against shirts...what a Jack Smitty!

Jack Smitty by G-whizz January 24, 2010

Shitty Jack 

The act of jacking off while simultaneously taking a shit.

Guy 1: "That guy's been in the stall for 20 minutes!"
Guy 2: "He must be getting a Shitty Jack."

Shitty Jack by boosac May 21, 2020