bifkin train

An occurence during intercourse between male and female where (usually in the doggy position), the mans purple headed yoghurt slinger slips out of the vagina and into the asshole but instead of stopping they come to a mutual decision to continue anyway.

steve: oh fuck my dick just slipped into your shitebox!

betty: wow! that feels really good lets keep going!

steve: fuck yea! i just accomplished the bifkin train!

by conzadizzle January 20, 2011

biffins bridge

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 9, 2004

biffins bridge

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 7, 2002

bifkin

correct physiological term "perineum", or area between anus and ballsack

Tickle me bifkin again Mike.

by Lionel Wildfowl January 6, 2003

Bifkin's Ridge

Same as gooch, the skin between the anoos and the ballbag. Would also be a great name for a movie.

Would you like to take a trip to Bifkin's Ridge? Just lie down for a second... *squat*

by TommyB. April 1, 2008

biffin

The small area between your balls n your bum.

Between ur balls n your bum theres a biffin, its a place where you shouldn't be sniffing.

by Master One August 27, 2003

Bifkin's Ridge

Same as gooch, the skin between the ass and the ballbag. Would also be a great name for a movie.

Would you like to take a trip to Bifkin's Ridge? Just lie down for a second... *squat*

by TommyB. March 27, 2008