When you are horny and want to have sex but your vagina "slams shut". Your sexual partner can't fit anything maybe a finger in there.
Referring to lockjaw, of when you use alot of cocaine and your jaw will slam shut without you doing so.
"Babe why is your vagina so tight I thought you wanted sex? I can barely fit my finger in there"
"Looks like I'm having a case of vaginal lockjaw"
by Chicken_tindies April 18, 2019
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