Top Definition
(v.) to make no sense (n.) a person with no sense and speaks with combined gibberish and rambling (adj.) to describe someone who is either making no sense or full of shit

gibbish - the act of partaking in gibbis
gibbising - the act of gibbis
My boss said that if I don't stop gibbising around, that i can kiss my job goodbye.

"The dude over there said that you can't out drink him!"

"Tell him I said he's a load of gibbis."
by Kyote July 31, 2009

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