big fanny

juicy just one look at it will turn you into a raging inferno of sexual passion

A white pink big fanny

by Smallbutbig November 20, 2013

Your Big Fanny Granny

Term used by 'Diary of a Wimpy Kid' as a 'your mom' joke.

Substitute Teacher: Greg, can you answer this problem?
Greg: Your Mama!
Substitute Teacher: Excuse Me?
Greg: Your Big Fanny Granny!
Substitute Teacher: Well I hardly think that's -
Greg: Your Slaphappy Grandpappy!

by middle_school_'lOsEr' December 31, 2010