The soft piece of skin between the vagina and the anus that your balls 'biff' against when blowing the back doors off a woman.
by Tuffty March 9, 2004
 Get the biffins bridgemug.
Get the biffins bridgemug. by Andrew Summers August 7, 2002
 Get the biffins bridgemug.
Get the biffins bridgemug. by La Pistola February 13, 2010
 Get the biffins bridgemug.
Get the biffins bridgemug. by Tracey August 29, 2003
 Get the Biffin's Bridgemug.
Get the Biffin's Bridgemug. by Biffin March 22, 2004
 Get the Biffins Bridgemug.
Get the Biffins Bridgemug. by james lafleur September 20, 2009
 Get the Biffins Bridgemug.
Get the Biffins Bridgemug. by Season with dill January 29, 2020
 Get the Biffins bridgemug.
Get the Biffins bridgemug.