"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!"