by makeoverguy April 07, 2009

a combination of the words 'good luck'. used as 'bye' in parts of ireland. also spelt: glac, g'lack, g'lac.
by SkinnyEff May 18, 2008

by TheSaneKing April 04, 2015

by baxterbrown October 24, 2018

Unremovable slug slime adhered to skin.
“My sister stepped on a slug and it took her hours of scrubbing to get that damn glack off her foot!”
by C. Craig Craighead July 04, 2021

The act of slarving a dode to the point in which one is only able to utter "glack" through the tiny air crevasse between their lips and the glack-causing instigator's genatalia.
by Bwade December 03, 2015

by crankiestrobin June 20, 2011
