Top Definition
A man who is very big in the pants. A big penis boy is usually around 8 inches or more.
Wow Randall, you are a big penis boy! That thing dangles to the floor!
by BIG PENIS BOY BJ March 17, 2009

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When someone has a very large penis, you can refer to him as big penis boy.
Damn, you're hung like a horse you big penis boy. That looks like a 30 incher!

I mean that is a big penis boy, he is dibision bun for sure
by Halasheek Muhammammad October 08, 2009

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.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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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