The opposite of grool (as used in the beloved film Mean Girls). To be lumb is to be lame and dumb all at once. Can be used as an adjective, noun, or verb.
Jack: Nicolas Cage used to be grool, but everything went downhill after National Treasure 2.
Ash: Yeah, now he's just a lumb actor.
Jack: Don't be a lumbdog millionaire.
Ash: Yeah, don't be lumb and lumber.
Annabelle: This little lumb of mine, I'm gonna let it shine!
Ash: Yeah, now he's just a lumb actor.
Jack: Don't be a lumbdog millionaire.
Ash: Yeah, don't be lumb and lumber.
Annabelle: This little lumb of mine, I'm gonna let it shine!
by hahahajackmyswag February 24, 2015
Get the Lumbmug. Iqubal: knock knock
Matt:Who's there?
Iqubal: Doctor
Matt: Doctor who?
Iqubal: haha you just said it!
Matt: lumb what a loser!
Matt:Who's there?
Iqubal: Doctor
Matt: Doctor who?
Iqubal: haha you just said it!
Matt: lumb what a loser!
by paradise92 June 10, 2009
Get the Lumbmug. by emilyzilla July 3, 2011
Get the lumbsmug. You really lumbed me, right where it hurts!!!
I can smell a Lumb!!!
To lumb or not to lumb, thats is the question
I can smell a Lumb!!!
To lumb or not to lumb, thats is the question
by Graham Osbourne September 8, 2006
Get the Lumbmug. Lumb is a famous homo-erotic acronym standing for: Lube up my butt.
It can take on two meanings. It can be a command, dictating one's gaysexual boyfriend to lubricate one's asshole, or a state-of-being, such as in the example shown below.
It can take on two meanings. It can be a command, dictating one's gaysexual boyfriend to lubricate one's asshole, or a state-of-being, such as in the example shown below.
by Alex Yusupov October 12, 2008
Get the lumbmug. 
Get the lumbmug. 