A term from the movie The Waterboy when Bobby Boucher gives or asks for a high five

Also can be used when you give or ask for a high five

*note* when said must be said with a hard lisp

Commonly used in text messages or social media as a short form for Very Sound Advice.

the hand you use to jerk off with

The act saying no, then slapping the knuckle side of your left hand, with the palm of your right hand. It's a sign that really expresses how wrong the other person is in a conversation, or any other way that "no" needs to be heavily expressed. Can also be used instead of saying, "no, never again". Can be expressed as an acromyn over chat, with "sh, no" or just "sh".

When one guys hits it in the pink, and one guy hits it in the stink, and they literally "slap hands."