An obnoxious word used by every single middle/primary school kid in the world.
person 1: Yo bro my gf just broke up with me cos she likes another guy 🤘.

person 1’s friends: SUIIIIIII
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Short for suicide, but doesn't only mean taking your own life.
1. killing yourself
2. to break, to stop
3. do badly
etc.
1. He pulled a sui last night. Gonna miss him.
2. Sorry, my internet sui'd it for a second.
3. I don't care anymore, I'm just gonna sui the test.
by faking suicide March 26, 2010
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hey boy, that man over there suys for 1000 birr.
by Dick Hung Lo June 22, 2009
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Straight Up Islanders
Gang in East Side Sydney but used by all Islanders in Australia that live on the East Side.
Pacific Ballar Crips are also known by SUI.
Those Pacific Ballar Crips are SUI's!
by Bally June 23, 2006
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SUI got him a F on the exam.
by Popo Lan July 30, 2009
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'Scooting Under the Influence'

To be caught riding your scooter (a Macro scooter, if you will) whilst under the influence of alcohol. Scientific inquests have shown that enjoyment levels augment by at least 150% whilst scooting under the influence, whilst death rates rise accordingly.

The most famous recipient of an SUI is the ficticious John "J.D" Dorian, from Scrubs.
Lad 1: "Fellas, i got an SUI- sweet"
Lad 2: "Buy this guy a pint"
by MK tm 2009 June 13, 2009
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Last night while SUI, I bought a new car
by Jaques2433 February 25, 2011
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