learned from speed tv: Clag is the bits of rubber that get thrown off the tires to the side of the road outside the racing-line.
I have walked the track after a race, and they are often small specks to marble sized, and less-frequently but noticable golf-ball sized.
by Matthew May 23, 2004
An aviation acronym that originated within the Royal Air Force. It stands for "Cloud Low, Aircraft Grounded", but nowadays it is often used in general usage to describe grey, drizzly low laying cloud.
I don't fancy flying in the clag.
by Ben Chapman January 16, 2007
Clag can also refer to any smoke or byproduct of a large diesel engine's Starting or pulling heavy loads as seen with trains and semi's
During Locomotive starts, there's excessive clag
by Northstar2007 October 21, 2007
Brand of Australian glue, often used in a sentence to describe something that has become stuck or stopped up.
My Computer has clagged up 'cos I'm running too much stuff
by erin day May 18, 2005
cunts + slags = clags
Look at those girls over there, they're all a bunch of fucking clags!
by Aron :D September 24, 2007
Verb, to clag: to stick one object to another.
Are you going to clag a new sign on the door?
by David Palmer May 26, 2005
Clag is the a northern word used in place of punch and hit. is used generally after alcohol consumption and usually when in the wrong!
He is such a cheeky fucker he is, am gonna have to clag him if he doesn't watch his gob, like!
by John Christal November 11, 2008