Bro stamp 

When a bro has a dumbass generic tattoo on the middle of the person’s back, bro stamp

I was dancing at an edm show and I look up to see nothing but a gd bro stamp.

Bro stamp by Ncsuengin9 June 1, 2019

Bro stamp 

The sticker on a flat brimmed baseball style hat,that confirms that the wear is a "Bro"

Dude, look at that douchbag he even has a bro stamp on his hat.

Bro stamp by adam13371321 July 19, 2011