Life jacket worn by aircrew during WW2 which when inflated gave the wearer a similar appearance to an actress of that name renowned for the size of her boobs.
Inflatable yellow life jacket
by TimB June 05, 2005
1 Word related to maywest
May west means Best or very best.
Want to rob a church?
That idea wasn't your may west was it?
(That idea wasn't your very best was it?)
by Michéal O B May 16, 2008

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