Stiff Biffy

Having a fully erect penis while wearing sweat pants.

"Dude, I got early the other morn'n and went to hardee's for a biscuit only to look down and see that I was totally sport'n a stiff biffy. The cashier called the cops when she saw the head peak'n out."

Stiff Biffy by P.T. Rodriquez October 5, 2006

Biff the Stiff 

The act of calming down an erection using manual force in an awkward situation.

Jeez man, we're in Mothercare, biff the stiff!

Biff the Stiff by Souperman1234 September 4, 2010

Sniff the Biff

When one’s biff has come to a near close, and one of the boys inhales the remains to maximise “bifficiency”

“Mate this biff is out man!”

“Nah mate just sniff the biff!”

Sniff the Biff by J.D.Wetherspoon November 20, 2020