Top Definition
Not Safe To Fuck

Pretty self-explanatory.
Angela has a bad case of the brown starfish, her asshole is NSTF.
by acablue January 19, 2009

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Written abbreviation for "No Shit, True Fucking Story." Commonly used by fighter pilots, often at the beginning of a story about an adventure or exciting event.
Entry in the doodler book.

"NSTFS, there we were..."
by DeX696969 April 24, 2016

The Urban Dictionary Mug

Lotsa space for your liquids.

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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