Definitions by DJ N-Fuzion

jam flaps 

A girl's vagina when she is on her period.

"Bleeeerrrgghhh.. Jesus girl put it away, you've got jam flaps"
or
"Yum Yum, bring that over here, I'd love to chow down on your jam flaps"

(depending on your personal perversion)

jam flaps by DJ N-Fuzion February 11, 2008