A driver who shows no regard for the safety of themselves, their passengers or anyone in the area by driving extremely recklessly seemly choosing the worst times and places to do it whilst using words that do not go together in the context used (illiterate) such as "show them what time it is"
by Shootin6mill May 24, 2022
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this can be used as a response to a question or simply as a reply to any given sentence. this word can be used whenever is deemed appropriate to do so.
example 1: jj- yoooo g wys wanna come briz and do bare shenanigans on shard
callum- Certi M8

example 2: urthe- mmdobidebo mate wanna come to my boat and do shrooms
calum- Certi M8
by cwizzle July 17, 2022
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Someone who operates a car very well
My bro is a certi driver, he did 60 down that 30 road and gapped the Feds
by 77773ggg April 14, 2022
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When a person with a lot of respect and notoriety (a certy guy) is around and people who are usually quiet decide to act hard and beg them to impress and gain their respect.
THE CERTY GUY EFFECT:
A regular guy: “That guy looks like Henry the eighth”
Everyone: *cricket noises*
Certy guy: “hey that guy looks like Henry the eighth”

Everyone: “HAHAHAHHAHA SOOO FUNNNY YOU LEGEND WOW HOW DID YOU NOTICE THAT HAHAHAHAHHA CAN I SUCK YOU D**K!!!”
by Mattmatt88282 October 20, 2018
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abbreviation for certified, often used in the phrase "certy dumper", meaning that someone has a fat ass. Like an absolute dump truck. Like that shit is life-changing cus it's so massive. It's too much to grab.
Troy: Damn that girl has a fat ass
Martin: Yeah she got a certy dumper!
by certy dumper bitches February 4, 2022
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