look up any word, like donkey punch:
 
1.
too good to be true
she is tgtbt. i bet she has a boyfriend.

this is tgtbt, it must be a dream or something.
by Anusman2009 October 18, 2009
 
2.
to good to be true
'i got tickets'
'seams tgtbt to me'
(only realy used online)
by Bob October 20, 2003