Pittsburgh Printshop 

The act of having sexual intercourse with a used adult diaper, Ejaculating inside of it, and then rubbing it on the local News stand.

Man1: hey bro
Man2: sup bro
Man1: pittsburgh printshop bro
Man2: yea bro
Man1: later bro

Pittsburgh Printshop by Hackanut February 19, 2009