Like simultaneous but 50% better. It is the occurence of three things all at the exact same time.
Bartholomew's anti-crab shampoo trimultaneously rids user of crabs, adds sheen to dickwheat, and leaves behind the delicate scent of jasmine.
by Josh Reauz September 06, 2006
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*dude is on the phone, paying the pizza guy at the front door & brushing his teeth*

phone caller: " I cant understand what your saying..."
Dude: "chill man, I got s**t going on trimultaneously here..."
by Kali Vastel February 25, 2008
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