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Boing Boing means large breasts, with the term 'boing boing' referring to how large breasts bounce .

The term was popularized by Vtubers from Hololive.

See 'rushia is not pettan':
See `Pekora is Boing Boing`:
"I am not flat! I am boing boing!"

"I heard she's unhappy with not having them boing boings."
by NotXA October 09, 2020
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Jan 24 Word of the Day
1. (noun) An abbreviation for stimulus check

2. (verb; stimmied) to get fucked by your government
Me and my homies are going to use our stimmys on guillotines and oreos. Too bad we can’t afford the milk
via giphy
by ecogoth January 01, 2021
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A rash you get between your legs near your balls after going swimming at the beach
I have been at the beach all day, My boing boing is killing me.
by Spinksy November 03, 2007
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A single hair that grows on a female's chin overnight. Curly, and resembling a pigtail.
"I don't have a beard, but I do have a boing boing."
by Sir Boingus of Boing July 13, 2013
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Speedo or similar. Competitive swimming/European Men's swimwear.
Did you just see that guy in the boing-boing by the water? This is the Jersey Shore, not the French Riviera! Let's kick his ass.
by Marshrabbit April 16, 2019
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