The peice of skin between the vagina and anus.
You look a bit pale today mom, yeah your dad crosed biffins bridge last night .
by Andrew Summers August 07, 2002
The soft piece of skin between the vagina and the anus that your balls 'biff' against when blowing the back doors off a woman.
The soft piece of skin between the vagina and the anus.
by Tuffty March 09, 2004
The area between the vagina and the anus..cross if you dare!
Well it slipped out of the hole, across Biffin's Bridge and up the ante!
by Tracey August 29, 2003
The cross bar on his bike hit him right on his biffins bridge
by Biffin March 22, 2004
Where your chin fits
Just been to biffins bridge, oh lay
by La Pistola February 13, 2010