Top Definition
byf
Stands for Before You Follow. Used on Tumblr by the type of people who get called "Tumblrinas" and "Special Snowflakes" unironically by even more pathetic, fedora-toting, anti-SJW types.

Usually read as"don't follow if you are a shitty person or if you disagree with me in any way or think you are the same fictional characters that i think that i am! ask to follow if you are spacegender, goblinkin, or are named Brad!"
if you dont read my byf before following you should kys okay thanks bye!
by lesinar January 05, 2017

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byf
Brick Your Face. As in, throwing or smashing a brick into someones face.
I should BYF you bastard.
by Hunchback September 01, 2005

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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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