Sub Punching 

Doing something awesome. In Captain America: The First Avenger, Cap takes out a submarine by punching it. This is an act of being awesome. The sub is a metaphor for an object, person or event of which someone defeats or conquers in some way.

There is also to have your sub punched when something less than awesome happens to you.

I got straight As, proposed to my lady friend and won the lottery, its been a day of sub punching!

Sub Punching by Team Mitch May 16, 2011

Punching the Turkey Sub 

1. Drinking an excessive amount of alcohol with your wife on "date night" resulting in the drunk hungry's, which can only be satisfied by a trip to the local sub shop for a foot long. After deciding one sub isn't enough she tries to grab yours and when denied punches the sub out of your hands. The evening ends with no midnight meal and no consummation of date night, leaving you with no option but to " Punch the turkey sub" yourself.

Date night ended with Jen passed out and me "Punching the Turkey Sub."

Punching the Turkey Sub by HarryTanline April 10, 2010