Litmus Test 

The act of covertly sniffing a finger that has been inserted into a woman's vagina while making out for the purpose of determining if it is safe to proceed to oral sex.

I was going to munch her box, but I ran a litmus test, and it came back positive for stank, so I just bagged it and tagged it.

Litmus Test by Vinceums November 22, 2003

litmus test 

The act of following a questionable male or female to a public restroom to determine his/her actual gender.

"Chris" wore clothes that either sex could wear, had a haircut considered tolerable of both genders, and a voice that's indistinguishable between an angel or a scruffy Southerner. So Joe did the ol' litmus test and followed Chris to the office's bathroom.

litmus test by DoctorGrey October 15, 2004

Litmus test 

Leon's wrong

Alice: Hey, did you the world is round?

Leon: Actually, it's round

Alice: I guess that just a typical litmus test then.

Litmus test by Leon's big pp April 26, 2024

Jerkoff Litmus Test 

The act of masturbating before deciding whether or not you will make social contact with a girl. Performing this test lets you make sure you're thinking with the correct head before proceeding to talk-to/meet-with a girl that you would otherwise regret making contact with.

After doing a jerkoff litmus test I realized that more than half of the female contacts in my phone are worthless.

Jerkoff Litmus Test by jerkoff_tester December 7, 2012