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Acronym for High-Intensity Interval Training, a cardiovascular session which involves a warmup period, several short, maximum-intensity efforts separated by moderate recovery intervals, and a cooldown period. The period of alternating effort and recovery intervals typically lasts a total of 15-20 minutes.
"Dude, what's your secret to all that weight loss?"
"A good diet, HIIT 3-4x per week, and a hot chick I wanna fuck for motivation"
HIIT by SammyAbaby July 2, 2008
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hiit workout 

A workout consisting of about forty-five seconds of hardcore exercising, followed by a fifteen-second rest, repeated for a few reps
Those HIIT workouts really paid off-look at how much weight I've lost!
hiit workout by mogwaipanda May 4, 2018
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hi it’s becca 

The three infamous words that can ultimately alter a persons life for good. Once you have heard these three simple, but yet complex words you will then know that your life is coming to an end.
Yes Hello? Who’s this?
“Hi It’s Becca
hi it’s becca by 👑 Danby November 5, 2018
I HIITB last night, now Julie can't walk straight!
HIITB by stale February 25, 2003
Stale likes to HIITB with Marasamus, although, they try to deny it.
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puloo's preferred sexual act.
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hiitskate 

The Beat girlfriend and bestfriend in the world even though shes put thru hell all the time she always keeps a smile on her face‼️🖤p.s im sorry wobbles🖤
Hiitskate is the best in the world
hiitskate by SheCravesTy November 23, 2021