- Informal. thank God it's Friday.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for tgif
Maybe something along the lines of…TGIF: Troubled Government Initiatives Fix?A Modest Proposal
February 15, 2009
Word Origin and History for tgif
also T.G.I.F., by 1946, slang abbreviation of "Thank God (or "goodness"), it's Friday" (end of the work week).
Online Etymology Dictionary, © 2010 Douglas Harper