Fuckboy

A term used to refer to male in the top 20% of Sexual Market Value (SMV) i.e. A guy who is an 8, 9 or 10, relatively speaking, to the competition in his location / society. The proper term is a "Chad".

The word fuckboy was popularized by the many lower SMV girls whom Chads have fucked without the intent to form anything resembling a relationship. These girls are usually 5s, 6s, and 7s, but look hot with a tonne of makeup etc. They usually meet these Chads ("fuckboys") on Tinder, meet up for a "date" at a cheap bar, which always happens to be within a 1 mile radius of Chads apartment, and then let him fuck them raw that night.

With the door open, so to speak, and an easy fuck with no condom when he's bored; Chad will most likely fuck them 3 or 4 more times over the space of the next month or so, on the weekend days that the 8 SMV girl he's actually dating for real is busy.

You can see why these girls are called "backup girls". Chad cuts them off when they inevitably begin to get attached and needy after a month.

This is one of the many obvious outcomes of giving complete reproductive sovereignty to the sex that is the bottleneck to reproduction and a deeply hypergamous creature by nature. Another outcome is incel school shooters, as we see more and more of everyday.

tl;dr:
Fuckboy is term 5/6/7s give to Chads that they gave easy, raw pussy to for a month, then got ghosted by when they became a hassle.

"This new guy Chad I was dating for a month just ghosted me, I really thought he liked me, that's why I gave him easy raw pussy immediately. Why do I keep meeting fuckboys!! "