Abbreviation for "the fuck if I know".
I think he was in a bad mood because he broke up with his girlfreind or something, but TFIIK.
by ArguableHappymaster June 03, 2011

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Top Definition
short for "the fuck if i know"
TEXT CHAT:
Bob: where did joe go?
John: tfiik
by gamewin1 August 13, 2011

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Lotsa space for your liquids.

Buy the mug

The Urban Dictionary Mug

Your favorite word on a white mug.

Create a mug

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug

The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

Buy the t-shirt

The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt