Top Definition
The stupid half-run people do when the crossing signal light goes from green to red as they're crossing the road.
Look at that guy doing a monkey run across the street.
by mazzyg January 06, 2009
When you are masterbating and you are about to unload but you are not near a bathroom and you do not want to make a mess. So you run to the bathroom/toilet holding the end of your penis with one hand and the other hand in the air doing an impression of a monkey.
Oh shit, im about to cum - im gonna have to do a monkey run to the toilet.
by Daryl Brown November 18, 2007
A frantic dash, usually from one side of a city to another. Also emergency travel between two countries organised at the last minute to try to prevent something terrible from happening.

Reminiscent of a monkey running on the ground from a predator looking for a safe tree to climb. Arms and legs are usually swinging from side to side and the monkey has a grin of terror on its face.

Monkey runs typically have a success rate of between 30% and 50%.
Sandra suddenly realised that she left the CD-Rom with all the photos in her husbands lap top. If he turned it on the game was up. She decided she would have to do a monkey run to London that night.
by Maidhcil Mac Fheorais September 16, 2007
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