It is when you are having a long day that you go mentally insane. For an example: having a long day at school, then when you are talking, the littlest things make you laugh and the dumbest things, like a number and a word make you die of laughter. It is quite common to happen with friends after work or school. It is very likely that when you have it people around you get it as well.
High on air example
Friend: yeah I did math today. I found out that x is a variable.
You: HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA. X. HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA
Friend: yeah I did math today. I found out that x is a variable.
You: HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA. X. HAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA
by Obabobatuneday October 12, 2020

usually done by a female to a male, where she dances provocatively in front of him, getting close, very close but with no contact at all, She pretends to rub her ass on his lap and is usually paid to do so.
Jimmy got an airdance with Sunny and got too frustrated becuase he wasn't alowed to touch her at all.
by Luana April 2, 2004

P1: "Hey man, check out my air guitar skillz with a 'z'!"
P2: "No man, you suck... you suck man titties."
P2: "No man, you suck... you suck man titties."
by dixintha March 27, 2008

When two males 69( when the suck each others penis's) they do this while standing upward( one man standing up and the other upsidedown sucking his penis) A sexual move perfromed by two gay men
by bigwilly19 March 25, 2010

To pull your skateboard from under your feet, grap the board and spread your arms as if your nailed onto a cross in mid air. Pull a classic skater bob stunt by putting your board under your feet in time 4 a kick ass landing!
by Billabong September 12, 2003

by D. Gould January 25, 2006

A woman who synchronizes her bouncing boobs to the beat of a song. This usually happens at an 80's hair band concert or karaoke night at the local dive.
by Jeff Ashley September 22, 2010
