An abbreviation for thank the fucking lord.
This is used as a sign of relief or happiness towards something.
P1: is the test cancelled tomorrow?
P2: yeah, it is.
P1: TTFL or thank the fucking lord
Ta Ta For Later!
a lame improvement of ttfn
(also works well with ttfe, or ta ta for ever)
girl: TTFL! u r staying right?!!?!?/1/1
guy: NOPE! TTFE HO! I NEVER COMING BACK!muuaaahawhawhaw