1) a water pipe equipped with a nail (made of Ti, boro glass, or quartz) used to vaporize marijuana concentrates such as hash oil or BHO.
When Jimmy used his new oil rig, he took seven dabs and then ate two pizzas all by himself.
by MissHighlyInspired October 9, 2013
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When two guys have anal sex with each other at the same time. Guy A fucks guy B in the ass while guy B fucks guy A in the ass. Also known as reverse anal double butt fucking.
Yowseph and Fernando were oil rigging all last night.
by Yan bafa May 14, 2015
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The act of stopping up a toilet with toilet paper and then depositing your feces on top of the paper. The turd should protrude through the top of the water, resembling an oil rig.
The man was disgusted when he had to plunge The Oil Rig festering in his toilet.
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The act of being upside down and sqiurting diarrhea in the air.
I had diarrhea the other day, so I tried to make an oil rig.
by alex G May 20, 2013
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This term pertains to a sexual position involving two males and a female. Normally the female will be a slut but there have been cases reported where she is just a damn good sport. The two males sit on a bed facing each other with their legs spread wide and raised slightly in the air. If they two males wish they may touch feet to make it easier to keep their legs at a slight angle. The female then lowers herself onto the crotchal region of one male while still facing the other. As she lifts her vaginal region off of male number one she lowers her mouth to fellate the male she was originally facing. This movement is repeated as many times as necessary. Thus the female is making a sort of see-saw or oil rig-esque motion. To bring this image to the next level one can almost say that like an oil rig she is sucking the "oil" from the depths of the well. If the two consenting gentlemen see fit, they may intertwine each others toes for a small bit of added pleasure during the orgasmic moments.
"Whoa dude, Bessy's oil rig totally drained my well!"
by Eplaja April 4, 2008
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The sexual act involving two chubby girls performing a reverse Eiffel Tower on a skinny guy.
Chris had an Oil Rig with two big girls after Nate fell asleep.
by Sachmo16 April 11, 2011
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