søk opp hvilket som helst ord, som hipster:
 
1.
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
av Whatuvit 6. desember 2012