When you give a girl the option as to where to put your member (Termometer). You can either stick it in her mouth under her tongue or in her ass.
Taking Temperature...
"Hey man my girlfriend was not feeling well on Monday so I took her temperature under her tongue.
On Friday she was feeling much better so I took her temperature in her ass."

Sucking mercury
Bitch got mercked
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When you finger a girl. Fantastic-like.
"Hey Drew, guess what happened last night? I was taking temperature of this chick and I think she had the flu."

"How'd you take her termperature"

"With my finger thermometer...it was a balmy 98.6 degrees"
by Benny Delicious October 15, 2006
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Euphemism for having sexual relations with an incredibly attractive woman, i.e. you're "taking her temperature" vaginally with your penis instead of a thermometer.
The gorgeous blonde paralegal with whom you work walks into your office, and your first thought is "I SO want to lick her pussy and take her temperature."
by Point Oner November 22, 2004
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To probe a woman with a penis, which can be done orally, anally, or vaginally.
My wife looked a little under the weather, so I tried to take her temperature with my meat thermometer. She perked right up.
by ckeliib June 4, 2009
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