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When a lady is "entertaining" three gentlemen at the same time, ie taking it from behind, giving a blow job and having sex in the traditional manner. As all three orifices are filled, she has an "air-tight" seal, leading to the term Tupperware. I thank you.
Gary, Tom and Greg gave Sharon a Tupperware last night, she didn't know which way she was coming!
by Aunty Smutty July 05, 2006
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A substance that enjoyed cult status in the 1950s and '60s, when hordes of women would gather in domestic settings to finger and fondle it at parties, often becoming rapturous in the process. It is said that, with the party reaching its climax, only the hostess would receive immediate gratification by being able to keep a bag of the substance, while the others could only look on in envy or become hostesses themselves.

Besides cockroaches, the only thing that is thought to be capable of surviving a nuclear holocaust.
Husband: Honey, I ran over one of your good plastic, resealable Tupperware storage bowls with my Hummer.

Wife: Don't worry dear. See, even after the punishment of your massive chassis, I can still get my lid on tight!
by MushMouth January 30, 2008
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Refers to females who are extremely fake and plastic. They throw around compliments every time they see each other in order to boost their self-confidence. They also say "I love you" to every girl they see right, left and center.
One girl sees another, and a third person comments:
Girl 1: "Hey girl hey! Damn girl you look so pretty today."
Girl 2: "Aww, thanks. You're shirt is so cute! I love you girly."
Then they proceed to hug each other.

Third person: "Dude, these girls are so tupperware."
by Hey girly March 27, 2010
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It Shows a good or excellent thing that is always good and and can also be used as a greeting.
Dude thats so tupperware or Hey whats tupperware
by no-one you shall ever know April 13, 2004
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