A fork of Rural Dictionary
when a womans fanny has expanded to the estent that it resembles the sleeve of merlin himself. due to many sexual partners or regular fornications with an unaccomadatable penis, one may find herself with a spacious v agina, stretched by much pounding. see also:- 'cave'
"i took it 3 times from adam last night - his dick is nine inches dont you know!" "holy shit love, you must have a fanny like a wizards sleeve!"