Much like the word fanny bandit which refers to people taking it up the ass, or giving it to some one up the ass in a homosexual way, a fanny biscuit is a fanny bandit but that person is much more lame.
yo amir is out there telling some corny jokes to nabil and acting like a tool, man what a fucking fanny biscuit.
by TheRussianBear August 17, 2007
1 more definition
The female equivalent of 'smegma'
"She hadn't washed her pants in days, they were full of fanny biscuits"
by hiyalove April 11, 2010