What is One Two Punch?
1.
The act of urinating (One) in an asshole (Two) and then punching (Punch) the young lady's stomach so that she "releases" the urine.
No intercourse necessary, it can be done for shits and giggles...but you might want to stage a doggy style hook up just to get the position right.
Mom, John gave me a One Two Punch last night, like the one you used to get from dad.
See 
Random Words:
1. 
(verb): To female ejaculate, i.e., to shoot liquid from one's vagina during orgasm.  (This phenomenon occurs in a minority of women..