Welly boot

A term used for overly large vaginas. Refering to the popular wet weather rubber footwear, Wellington Boots. If a certain level of skankiness is suspected custard can be added to the mix.
Her cunt is like a Welly Boot or Her cunt is like a Welly Boot full of custard.
by Scott Ramsay December 12, 2005
Get the Welly boot mug.