Top definition
Acronym for "Listen Up Mother Fucker". Meant to get attention before saying something important.

listen up mother fucker lol omg acronym slang abbreviation
LUMF...this acronym is going global!

listen up mother fucker lol omg acronym slang abbreviation
by Whatuvit December 06, 2012
Get the mug
Get a LUMF mug for your mama Riley.