flub (flŭb) tr.v.
flubbed, flub·bing, flubs To botch; bungle. n. The act or an instance of botching or bungling: "Their literature leans toward a comedy of small social flubs and withered chastity"(James Wolcott).
n. and flub-up. an error; a blunder. : Who is responsible for this flub-up?
in. to mess up; to foul up. : You are flubbing up again, aren't you?
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
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Word Origin & History
flub
1924, Amer.Eng., perhaps influenced by fluff, flop, etc.