Definitions by nihil8me

gen 

Gen, short for generosity, used in personal ads to thinly veil offers to make/receive payment for sexual acts. Typically these ads are short, confusing, and only those writing them and looking for them are suppose to be able to easily translate them.

Craigslist m4m ad: bottom up for gen 420. (a male offering sexual acts in exchange for marijuana)

Craigslist m4m ad: top gen. (some ads may be as short as this; a gay male "top" offering a negotiable cash payment for someone to come "bottom" for him)

gen by nihil8me December 10, 2009