A fork of Rural Dictionary
The dropping/drooping and loss of the pelvic floor muscle (between the vagina and the anus); plainly, the older lady's/too many sprogs/big fat lady condition of vaginal muscle tightness; collapsed cunt snatch control;
(Collapsed Biffins Bridge/Biffins Bridge Collapse) Ooh look her biffins bridge's collapsed - patently obvious when a woman is wearing a bikini! Cilla Black in tights!
When a man inserts his thumb and middle finger into the vagina and anus of a woman and attempts to click his fingers. Used to determine the overall condition of a potential sexual partner’s pelvic floor.
I wasn’t sure, she was a bit old looking. But a quick biffins bridge rot test proved she was in good enough nick.