"Let me fix that for you."

Used on internet forums when one takes it upon oneself to edit or correct somebody's words/images/material/whatever, usually with comical results.
Guy: Hey man, look at this cool Ed Hardy hat I bought!
Other guy: lmftfy... "Hey man, look at this douchebag hat I wasted my money on! I'm gonna wear it while I f*** my cousin!"
by Mr. Moons April 19, 2013
Get the lmftfy mug.