testing the waters

-- when you have no idea if something works, and you go at it tentatively
-- metaphorically like sticking your finger in coffee or tea to see if too hot

was just testing the waters, wasn't really serious

testing the waters by quickify February 22, 2017

testing the suspension 

Car sex

"Hey I saw you and Sarah in a parking lot last night"

"Yeah we were just testing the suspension, if you know what I mean..."

testing the suspension by r.crawfish October 24, 2020

testing the muddy water

Trying butt sex for the first time.

Patrick is testing the muddy water with Trish tonight.

testing the muddy water by crabbysparkles February 12, 2014

Testing nuts 

Rambling about something you know nothing about

My teacher was talking about how great Hillary Clinton is, she's obviously testing nuts

Testing nuts by Beli_whodie May 7, 2015

Testing Their Luck 

A person who has just had a negative Covid19 test, and knows someone who also has had a negative test and then assumes the rules don't apply to them.

Well those people over there sure are testing their luck.

Testing Their Luck by ME MAKES DICTIONARY March 15, 2021

Testing Positive

Quick and veiled way of telling another you are under the influence of an illegal substance.

Testing positive.

Testing Positive by cravinbob September 3, 2010

testing the rabbit

Lesbian slang for "hiding the dildo"

Bon: Erin and I are testing the rabbit tonight.

testing the rabbit by Arc December 4, 2004