1 definition by Phil Hickling
Surfin - A term used by men who swim out on surf boards and to sit at the back of the waves in order to fit large objects in each others rectums such as their fists.
"Oh Hi Mark, let's go Surfin tomorrow morning. Let's see if you can get double fists this time. Cowabunga dude!"
by Phil Hickling February 5, 2018