A "fuck boi" is a douch bag usually anywhere from 12 to 22
12 to 15 year old fuck bois- They wear sports attire and talking about having sex with girls even thought they haven't. And they've had multiple 'girlfriends'
If you ever date one throw his ass in the garbage like the condom your hiding from your mother.
Fuck boi: man, I fucking live you bb.
Girl- really?! I love you too.
-has sex and boy never talks to gorl again-