check her oil
When engaged in foreplay or intercourse you insert a finger or fingers into your partners anus, thus "checking her oil".
"As I was doing my girl in the doggy position I reached down to check her oil."
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
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.
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.