When you have so much grease and mold saturating the pubic hairs in the region between your gooch and your innermost cheek, that you can barely walk another step, and therefore "check," the oil. Depending on the circumstances one might: change your yellowing, mud-stained briefs, or dispose of them in the nearest body of water.
Goddamn! It's so hot out here that there is anal waste and sweat running down the bottom side of my thigh out of my shorts! This definitely requires checking the oil
by Dr. Dong Tip September 16, 2015
by caesar December 9, 2003
A test to be preformed on a chick before eating her out. Finger her a bit and catch a whiff of your finger and you'll know if its safe to proceed.
Use your finger like a dipstick to check her oil
Use your finger like a dipstick to check her oil
Yo man i checked her oil and knew it was safe
or
Yo man i checked her oil and DAMN!!! Was that a stank pussy.
or
Yo man i checked her oil and DAMN!!! Was that a stank pussy.
by Herb311 October 26, 2004
by Informersno March 15, 2016
When engaged in foreplay or intercourse you insert a finger or fingers into your partners anus, thus "checking her oil".
by Natedogg370 November 16, 2007
by t June 29, 2004
When someone pisses you off enough that you threaten to stick something, like your foot, up their ass.
by Oz in the ATL June 23, 2007