Acting out based on uncontrollable autistic or obsessive-compulsive urges; an autistic meltdown, or in a broader sense any sort of unusual, attention-grabbing behavior resulting from a psychological or psychiatric condition. See also reeee.
"I was just trying to chill, but this bitch won't stop tizzing out and making everyone nervous."

"I tried to organize the garage, but Captain Tizz here couldn't control their OCD and just ruined the last 3 hours of my work after they tizzed out and stacked everything back up to the ceiling."

"Stop tizzing, you're making everyone here feel awkward and you look like a complete moron."
by Doctor Malturin April 14, 2022
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like the word tizzight used WAAYYYYY back in the day but only cooler.
damn these new shoes i got are fuckin' tizz!!
by niquemarielove November 16, 2011
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"Tizzed up" means "dressed up" or "improved in appearance".
It may be Australian slang, but Victor Hugo used it in Les Miserables, referring to the servant women having their hair tizzed up.
by Clivius October 21, 2017
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A small electric shock usually from a plug
Rory got ah tizz while pulling out his charger while Sarah and Dana laughed
by I.love.hoes June 23, 2019
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Tizzing is when you tickle either your dick or asshole.
Boy 1: Bro! Hurry up!
Boy 2: Sorry.. im just tizzing..
by gabherelol August 10, 2023
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