The cock of a guy who's hung like a horse.
Girl to her friend: "I hear that guy over there has a real slammer. Lets try talking him into a threeway."
by danisdan January 03, 2005

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when getting head, you are not pleased with what u are getting, so you grab her by her hair, pull her off ur dick, hold your boner in place, and you slam her head on your dick repeditively. forcing a better blow job.
My girlfriend gave me such bad head, i had no choice but to summon a slammer on her
by Kalan Scott (Dream team) January 25, 2005

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