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1.
OLJTF is the abbreviation for "Oh Lord Jesus.. There's a fire!" It is used to announce that there is or about to be a heated argument online.
Brock: Dude, This is fucking bullshit! You're always cheating when we play.

Robert: Yeah, Cheating like your girlfriend.

Drake: OLJTF!
by DatKneeGrowSwag January 05, 2014