another type of "air humping" except you are on the floor grinding. this usually occurs when listening to hardcore songs that involve some kind of sex move.
i saw jake sexing the air when listening to Big Bang.

oh yeah, that was sexy!
by iBrokenDollz April 5, 2010
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Air that was formally outside your body but has been forcefully pumped in by an erect penis.
Warren: dang Jason what did you eat, your farting up a storm!
Jason: don't worry man it won't stink, Cory just pumped me full of Sex Air.
by Sexler December 19, 2014
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When the oxygen has soaked all the sex and it changes the air.
When the boat stopped rocking my dad woke up and said:
" what is that smell?"
I replied " go back to sleepndsd, that's just the sex air."
by Yerm1028 January 11, 2017
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