T.G.I.F.

T.G.I.F.
Meaning: "Thank God It's Friday.", "Thank Goodness It's Friday."
Origin: An acronym for Thank (T) God (G) It's (I) Friday (F).
Used In: America

Examples:
"What a busy week. T.G.I.F."
Translated:
"What a busy week. Thank God it's end of the week."

"T.G.I.F. Now, I can relax for the weekend."
Translated:
"Thank goodness it's Friday. Now, I can relax for the weekend."

Notes:
1. T.G.I.F. is used when you're thankful that the work/school week is over and you've got the weekend free (often with plans to relax or party).