A woman's erect nipples, either while topless, or when visible through her shirt. Each nipple sticks out in a way that resembles the thermometer that pops out on a turkey that is finished roasting.
There's no more beautiful sight than a happy pair of turkey timers.

Either it's cold in here, or the turkeys are ready.
by Farlig November 7, 2007
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A slang term for a fully charged / hard clitoris. So called because of its resemblance to the timer that pops out when a frozen turkey is finished baking.
One stroke on her turkey timer and she was gushing like Niagara Falls.
by anoldviolin July 22, 2016
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When you stick your finger up her ass and she pushes it out she's not ready. But if she let's it go in she's ready to go
I put my finger up her ass and she let it slide. Reverse turkey timer
by Twooclocktom December 13, 2017
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To be past one's prime; no longer desirable or relevant, AND be oblivious to the fact.

Related expressions include "His ship has sailed", "old news", "yesterday's potatoes".
"Did you hear Chevy Chase is getting a new show this fall?"

"No way, man... talk about a guy whose turkey timer has popped."
by AP in DC May 16, 2008
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