Pump slap
When you slap your meat rod like it's a cheap hooker. Usually done when tender love isn't enough anymore.
Dang man...Dude was pump slapping his sausage rocket last night...Sounded like it was gonna come through the wall and end up calling 911.
Pump Slap
It's when you wear a pair of reebok pump shoes from the 90's and slap someone
"Man, Jerry just pump slapped Mark for messing up his work space"