look up any word, like blumpkin:
 
1.
When you punch someone in the gut, crumpling him over, then punch that person in the face.
Mike Tyson beat him with the old 1-2.

Note -- Also carries ambiguous sexual connotation.

Bill: I gave her the old 1-2.
Ted: ... dude, fucking wifebeater.
by My Fist February 09, 2006
16 11
 
2.
sex act where you eat the girls pussy, then fuck her in the ass. Also known as the Lick & Stick.
I'd sure like to do the old 1-2 on Paula every week.
by bread infection January 02, 2006
9 11
 
3.
Butt to mouth
"I'd like to give her the old 1-2."

"What's the Old 1-2?"

"Butt to mouth. I'd butt her to mouth any day."
by Catfish96763737 October 06, 2011
2 5