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v. to continue sexual relations with multiple partners simultaneously, a la Tiger Woods.
Man, Tiger was multi-assing all those bitches!
by Staypuft75 December 15, 2009
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Jul 6 Word of the Day
A polite term for shoving a lubricated probe into the Earth's hole to release gas.
Earth: I'm having trouble passing gas.

People: That's nothing a fracking won't fix.
by onehandcrabbing February 21, 2012
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2
when a person is doing too many tasks at once, a little more than half-assing something.
Michael was multiassing on his psych, bio, and algebra homwork at the same time.
by sarcasmprince October 30, 2017
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3
To be doing more than one ass at once.
"dude last night i got so much ass at once"

"so you were multiassing?!"

"pretty much!"
by Falalala. January 02, 2010
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