Definitions by Garry Larson

Petting the Dog 

Gently stroking of your own genitals as foreplay to masturbation or because you can not, for whatever reason, masturbate at the time and still desire an erection

"I was with Dick and he just started petting the dog."

"I wish Samantha would pet my dog, I've got a great dane."

Petting the Dog by Garry Larson November 12, 2011