A fork of Rural Dictionary
a large, long, double sided, C shaped dildo that goes in the anus and vagina. The frontal piece (vagina) is a vibrator, and the back (anus) is a piston that goes up and down inside the butt. Off of this C shaped dildo is a cushioned handle for great handling.
Wow, that Big C was great! Masturbation can't go wrong with a Big C!