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1.
Massive Loss Of Face.

When one communicates an opinion or action that is deemed to be ridiculous/untrue.
Sagar - "Have you read the review of 'The best of Dubstep 2K9 by Alex Petridis for The Guardian?"

A normal person - "MLOF"
by FrancoF November 30, 2009
 
2.
MLOF
Acronym; Massive Loss of Face.

A Massive Loss of Face occurs when somebody says something that brings their reputation amongst their peers right down.
Paul: I just read in the Guardian that JLS's album is really good...

Simon: *palm goes to the face* MLOF
by benRAJ July 07, 2010