punch on 

Australian slang meaning to fight, or get into a fight.

He's always up for a punch on

punch on by qihaoming June 11, 2006

punch on 

To initiate a fight by throwing the first punch.

"That guy was about to punch on!"

"Some bloke was flirting with my girlfriend - I was ready to punch on."

punch on by iSkawt June 17, 2008

punch on 

To initiate a fight by throwing the first punch.

"I think that guy was about to punch on!"

punch on by iSkawt June 16, 2008

Punch on 

Pittsburgh slang for saying that you'll whoop someones ass in a street fight.

YOOO lil bro from up the way said he could slay you in a fight.
GAT! Ill punch on that nigga in front of his raise then ill "Punch on" his dad too.

Punch on by ShadyJuJu305 April 14, 2017

National punch the oldest person on your class

Just punch the oldest person on you class( not the teacher tho you don’t wanna get a referral do you?)

Classmate: hey buddy
Me:hey
Me:*punches*
Classmate: what the hell is wrong with you?
Me: sorry buddy it’s National punch the oldest person on your class day 😬

National punch the oldest person on your class by VSCO girl forever October 29, 2019

punch one out 

To go to the bathroom (number 2)
To take a crap.

I'm gonna go punch one out in the sh*tter.

punch one out by C. Berry August 1, 2006

Punch One Out 

one root

"wanna punch one out?"

Punch One Out by DJARSUP August 12, 2012