Something that is cool, but not entirely cool. Some would says it's aight
-Dude, check out my new furby it records military data...
-That's semi-cool.
by jeffba July 3, 2006
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A contest/event where a bunch of guys get together to compare the length and girth of their semi's. The winner receives respect, as well as the envy of others present at the event.
Paul : "Dude, the semi finals are being held at Jeff's mom's house this month."
Josh : "Sweet, I'll bring some Red Bull, a tape measure, and some partial nudity shots of Sigourney Weaver!"
by Manny974 October 10, 2006
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Better writing skills when you 'RP' in a guild or forum. You use puncutation and correct spelling. NOT 'TEXT' TALK!
Mike: da white elf jumpd da pond n laffed

Ben: ((Ok, dude, spell check. This IS a semi-lit forum.))
by Kody133 April 15, 2008
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Look Sue, Jerry's sporting a semi.
How can you tell?
Look at his pants!
OMG!
by Savage Dick February 5, 2014
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Being partially inactive. The term popularized on social media as a status.
Mark has exams now so he’s semi ia on Twitter.
by callmedarklucy January 27, 2022
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