Top definition
A plastic inflatable adult toy, in the shape of a naked female.

Most often bought by sad lonely men, those organising stag nightsand male Colleage Students at the end of term

Name derived from the Beatles song Polythene Pam.
A Polythene Pam being a Blow up doll, designed for sexual purposes, but used primarily for humour and comic effect.
by Angela Corke July 22, 2006
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