similar to the ass ram or the butt fuck, it involves invading your partners asshole like a dipstick on a car's oil gauge
"Dude, I checked your girlfriend's oil last night."
by a-bizzle February 28, 2003
6 more definitions
the act of poking someone in th butt, clothed or naked. The pokwe must be as close to the asshole as possible
I oil checked Jade while she was bending over and Alisha oil checked Molly.
by Molly August 25, 2004
Oil Check: act of sticking a finger up someone's butt hole, through clothes, usually during pictures or other public events.
During the wedding pictures yesterday Joe Pa got me with an oil check.
by Zach Ellis September 27, 2007
To put out your middle and index finger out and shove them up some one's ass.
Today Tim oil checked Mike so hard he started to bleed out of his ass.
by Mr. Gzella October 24, 2006
When one wrestler stick his finger(s) in his opponents butt to gain a positional advantage.
Niko was oil checked by Carroll during their match.
by c_evans December 02, 2011
When you stick your finger up someone's asshole checking for poop, while saying "oilcheck".
I was finger banging Sarah and decided to oil check her to see if she would be into anal but she was full oil so I didn't go for it.
by mikey1977OMG November 12, 2014
An act whereby an individual inserts his finger or penis into the asshole of another. Much like an oil check on a car, the appendage can then be examined to determine whether or not the contents are clean or dirty.
I saw Sam with his back turned to me so I gave him an oil check.
by Publius44 April 12, 2011