eden69's definitions
Doing the cosmo refers a teenager guy having sexual intercourse with a girl, thats 4 or more years younger than him, thus exceeding the doable age gap.
by eden69 November 25, 2017

The "doable age gap" defines the age gap between two teenagers, in which having sexual intercourse with each other is morally acceptable. It is usually defined as 4 years of difference, so an 18 year old guy having a sexual relationship with a 14 year old girl would be out of bounds.
by eden69 November 25, 2017
