Named after the famous geyser in Yellowstone National Park, this is a schlong that spontaneously erupts and unleashes a cum geyser right into your girl's face when you pull your dick out of her mouth.
...And boy, was SHE surprised when she got sprayed in the face by Old Faithful!
by Mansnake February 11, 2005

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The action that occurs when a male receives a blow job, then just before reaching orgasm the subject performing the blow job punches the recipient in the stomach, causing violent eruption of bodily fluids and substances from all orifices simultaneously.
The night was off to a good start up until Sally initiated Old Faithful, causing the night to come to a screeching halt.
by sparkyshark December 12, 2005

The Urban Dictionary Mug

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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

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After taking the girl's nose ring out, finish in her mouth after receiving oral, then tickle the young lady creating a geyser-like eruption out of the side of her nose, similar to Old Faithful.
Redface observed the magical beauty of the impressive spray that came out of Kelly's nose when he gave her an Old Faithful.
by Red Face November 08, 2007

The Urban Dictionary Mug

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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

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right before your about to nut put it in her mouth blow it in pull it out and punch her in the stomach to make her spu the semen into the air closely ressembling Old Faithful.
man i gave that bitch a mad old faithful, i had to throw up an umbrella
by Rubsky March 24, 2006

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).

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Pissing in a females, as she shoots the piss out doggy style.
That chick last night pulled and old faithful and soaked me!
by wut wut wut December 04, 2016

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