Usually referring to when someone wants to be random, but just ends up looking really, really stupid.
Jorge : I LET THE DOGS OUT! CHEESE + MAYO = MORTGAGE! OLOLO
Hernandez : Dude, you're totally randumb, stop trying.
Hernandez : Dude, you're totally randumb, stop trying.
by CriticalDesign January 16, 2008
Get the Randumbmug. by Bcikablam October 25, 2018
Get the Randumbmug. by Apocolypse April 30, 2004
Get the Randumbmug. When someone says something random but what they said just so happens to sound dumb at the same time.
by bitstripslang October 26, 2016
Get the randumbmug. "He probably thinks it's funny when he breaks into the 'berries and cream' dance, but everyone else thinks it's so randumb.
by Evelynne December 29, 2007
Get the randumbmug. Mike: I went to the store this weekend and went up to the cashier and went "You suck a duck", It was so random it was funny
Jon: Thats not random......thats just ranDUMB
Jon: Thats not random......thats just ranDUMB
by Kurt Jurgens January 1, 2009
Get the ranDUMBmug. by hasselhoffman February 26, 2009
Get the randumbmug.