Calling your bestfriend your fuckboi is like calling them your bitch. It's a playful insult that should be taken with a grain of salt. It's like going up to the squad and saying "ay my sluts what's up" it's used in context of a fuck toy. They are yours. You hold them close to your heart.
by KnightOfAllGayness June 5, 2015
Get the FuckBoimug. 
A terribly lame insult made up by 13 year old girls to insult any guy who doesn't instantly give them what they want to those precious little entitled princesses
by Flying-Toaster March 9, 2015
Get the Fuckboymug. A guy who wants to be invited over late hours of the night under false pretenses to pet your dog, usually goes by the name of adrian
by Gshakfhajabfhej January 24, 2015
Get the Fuckboymug. A self-absorbed jerk who just wants to jerk off to pictures he tries so desperately to get you to send him. He's a disgusting wanker that feeds off of other people and somehow gets away with it. He will make you catch feelings, and most of his tone consists of sarcasm. Besides wanking his life away, he invests the rest of his time on the internet on WOW and Tinychat. He is a scrawny pathetic white boy. Spotting one is not to hard. Just look for terrible style and sweatshirts. You can often describe one as being a 7th grader stuck in a 30 year olds body.
by 69O_o69 September 28, 2018
Get the fuckboymug. by ginval26 February 3, 2015
Get the Fuckboymug. by OGKUCZ October 18, 2014
Get the fuckboymug.