Checking her oil

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

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.

by Herb311 October 25, 2004

Checking her oil

The act of fingering a newly met girl while in public.

Dude, he bought her a drink and within an hour he was checking her oil on the dance floor.

by dickintosh April 26, 2012