collapsible container:

Euphemism for a condom or, more rarely, a diaphragm . See condom and diaphragm for synonyms.
See Also: bank, fifi bag, home sweet home, kettle, melting pot, pink velvet sausage wallet, premises, prick-holder, satchel, shake bag, sugar basin, wallet

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<a href="https://sex-lexis.com/Sex-Dictionary/collapsible+container">collapsible container</a>

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