A fuck boi is that one 15 year old boy you have on facebook who posts selfies of himself pouting with more than one filter applied over the picture and gets way more like than he deserves.

Typically fuck bois have gelled quiffs, think that it is acceptable for a boy to pout in photos and frequently post selfies with their 'six pack' in full display.

They have over 100 likes on their profile picture because they have 2,000 girls as friends facebook and simultaneously flirt with them all, have smoked weed twice yet own HUF socks and post pictures of their Nikes on instagram with the heart eyes emoji as the caption.

Fuck bois often think that they are cool for bragging about having sex or getting drunk.
"this fuck boi needs to stop writing soppy paragraphs on my facebook newsfeed, everyone knows he's only doing it to get into the pants of one of the 2,000 girls he's friends with"
by definepseudonym September 22, 2014
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An asshole who thinks hes the shit and can get any girl- but in reality no one likes him and . He is sweet at times but watch out, he really isnt. He fucks with girls minds and is usualy a player.
by 1213141516 February 15, 2015
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A person who is a weak ass pussy
that ain't bout shit.
by bretb December 30, 2005
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A fuck boy is a little bitch who messes with girls. He's obviously hot but is not as pretty inside as in out. He fucks up girls by leading them on then fucking with other girls the next day. He can also maybe just make up shit about you to sound cool in front of friends *pussy* oops. This bitch deserves a kick in the fucking dick to get his nonsense straight!
*fuck boy walks down the hall*
Girl 1: He's so hot but a total fuck boy ugh
Girl 2: agreed
by -A] May 21, 2017
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How to spot a fuck boy:
-His Nike socks pulled up to his fuckin knees
-Nike sweaters all the damn time
-Most likely has the international fuck boy haircut (Shaved on the sides, long on the top)
His text messages include:
"Lol so wut would u if i was there ;)"
"send sum pics?"
"haha imagine if we had sex"
"lol so r u a virgin"

STAY AWAY FROM THEM. THEY WILL NEVER FIND THE CLITORIS. DONT SEND NUDES.
*sees guy with skateboard and floral button down*
*backs away*
Someone: what a fuck boy
by green0sharpie April 27, 2015
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a guy that leads girls on and flirts with everyone. messes with girls' feelings
friend: "that guy flirts with everyone!"
me: "he's a total fuck boy"
by h8allyoumofos::://// November 13, 2014
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