Definitions by bbbeaver

The Dirty Bertrand 

Similar to a Dirty Sanchez, when one lets their unwashed bellybutton begin to stink then picks said bellybutton and wipes it on the upper lip of an unsespecting victim.

I gave a girl the Dirty Bertrand last night, she threw up in her shoes.

The Dirty Bertrand by bbbeaver October 13, 2012