Top definition
for a guy; masturbating prior to sex, so when you perform later it, last longer
(keeps stamina)
guy 1: yo i'm bout to go fuck my new girl
guy 2: don't forget the first nut rule
guy 1: haha nah, I already did it.. I aint a quick shooter
by Curtis B. September 01, 2014
Get the mug
Get a first nut rule mug for your dog Yasemin.