Top Definition
A sex position calling for the girl to sit on the guy as they ride over speed bumps. WARNING: DRIVE SLOWLY, IT MAY BECOME PAINFUL IF YOU DRIVE TO FAST.
Tommy: Hey are you going speed bumping tonight with your girlfriend?
Alec: Yeah...I'm still sore from last night though.
by Homie Cool March 13, 2010

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When something that happens to slow down you're action. Similar to cock blocking, except that it pertains to everything, not just pussy. A speed bumper is your friend, but he likes to watch you have a hard time with what you do
My boy was speed bumping our good time by getting too drunk to drive and making us call a cab.
by BBlanc March 15, 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.

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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).

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A variation of the bump and grind which results in accidental or "accidental" penetration...aka sex on a dance floor.
Joe: "So dude, how was the party last night?"

Dan: "Man, it was awesome, me and Kelly were grinding all night and then....we started speedbumping."

Joe: "No way man! Nice!"
by Yeskimo August 19, 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.

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