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slang Slimy and sticky. Possibly a portmanteau of "goo" and "mucky." Ugh, the gucky stuff they put on you before doing an ultrasound always feels so cold and gross.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
mod. thick and sticky; yucky. There is a lot of gucky oil and grease on the garage floor.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.