Someone who speaks jibberish, a made-up language, or speaks a language poorly.
"She tried to speak Spanish but, she's just a Jibber."
"Quit speaking crazy talk, you Jibber."
by BritishWordsAreAwesome October 7, 2011
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A handjob, shorthand: Jib
Verb: To Jib
"Pleeeeeeeeease give me a jibber"
"She gave me a jibber last night, it was a real jibbly one"
by Jibblyjobblywonder September 1, 2019
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Also known as ‘Owen Jibb’.

Child internet sensation. Speedo model. Absolute animal in the pool. King of the 400 IM. All-Star ladies man. Master of BBA. Chief of the Skokes. LEGEND in the sheets.
Bro I totally Jibbed that girl last night.

I fucking Jibbed that 400 IM yesterday.

The ladies call me a Jibber, that’s how long my dick is.
by Yo_Boi_Z October 13, 2023
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"Hey let me have a hit off that jibber you rolled.."
by btezra October 24, 2002
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A freeskiier that hits rails and jumps
Yo that jibber just hit that sick S-rail.
by Matt Feldman May 14, 2005
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