there was no snap in his turtle

Hi, The text I quoted is an excerpt of Friends, an American sitcom. What does 'there was no snap in his turtle' mean? Some Chinese say it means to have sex. I think so from the context. If it is true, why does it refer to sex? What are 'snap' and 'turtle'? :-?

Thank you!

Quote:

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[Scene: Iridium， Monica is working as Frannie enters.]
Frannie: Hey， Monica!
Monica: Hey Frannie， welcome back! How was Florida?
Frannie: You had sex， didn’t you?
Monica: How do you do that?
Frannie: Oh， I hate you， I’m pushing my Aunt Roz through Parrot Jungle and you’re having sex! So? Who?
Monica: You know Paul?
Frannie: Paul the Wine Guy? Oh yeah， I know Paul.
Monica: You mean you know Paul like I know Paul?
Frannie: Are you kidding? I take credit for Paul. Y’know before me， there was no snap in his turtle for two years.
[Scene: Central Perk， everyone but Rachel is there.]
Joey: (sitting on the arm of the couch)Of course it was a line!
Monica: Why?! Why? Why， why would anybody do something like that?

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Quote:

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Originally Posted by thedaffodils

Hi, The text I quoted is an excerpt of Friends, an American sitcom. What does 'there was no snap in his turtle' mean? Some Chinese say it means to have sex. I think so from the context. If it is true, why does it refer to sex? What are 'snap' and 'turtle'? :-?

Thank you!

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I made a search and found this:

¸úÀÏÓѼÇÁ·¿ÚÓ2£© - ¼ÄÍп¼ÊÔÕ¾ - ¼ÄÍÐÌìÏ - [GRE TOEFL IELTS GMAT SAT ÑÅ˼ ÕæÌâ Ó¢Óï ÈÕÓï µÂÓï ·¨Óï]

The explanation is there. :)

Hello Callichthyidae,

Thank you very much for your help. :-D