The extra skin hanging under a fat chicks chin. Urban myth has it that it is used to store semen because fat chicks don't get it all that often.
Man look at that chicks cum reservoir.
by hmmmmmmmmm September 20, 2003
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Compartment of a pipe that collects the black tar like substance known as resin.
Holly started coughing due to her dirty resin reservoir.
by alfreds ladies October 26, 2013
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Engaging in the Doggystyle sexual position while in a suit and sunglasses, biting or gripping of the ear is incouraged.
"Dude I was hitting it Reservoir Doggystyle and Stuck in the Middle with you came on! It was just like the movie but half as boring!"
by Toby Mugwire October 27, 2016
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A winter hat worn with the edges unfolded such that an excess of of the hat's material rises above the wearer's head, resembling the reservoir tip of a condom.

The term is often used as a shorthand identifier for the typical varieties of neon adorned "steezy" snowboarder bros who tend to be the primary exemplars of the fashion.
"Did you see that posse of reservoir tips that just climbed out of that Honda Civic?"

"Yeah, man... Looks like they are toking up before they go "shred the gnar" or whatever. Would you pass me my shades?... hurts like looking at the sun."

"Agreed. I'll go inform them it's not 1987 right away."
by hellischrome February 19, 2010
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When a guy pulls out during coitus interruptus and shoots his load all over a girl's stomach, but the cum manages to trickle down and collect in the girl's belly button.
Last night Allison told me to shoot it on her face, but instead I popped her with a massive load on the tummy and baby did it ever fill up the cum reservoir!
by schlong-a-nator November 2, 2009
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The left over cum in his/her belly button when said man came.
Sansa: dude why is there so much cum in my belly button.
Jeoffry: That's called reservoir cum, Sansa.
by AyyyyeSupreme September 14, 2017
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One of the best and most violent movies ever. Its about a heist that go es wrong and theres beastly violence
by JMN357 August 10, 2004
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