Sebastian 

To masturbate in the school bathroom without anything during class time.

Bill pulled a Sebastian yesterday

Sebastian by Joemamamamamama December 23, 2019

Sebastian 

A handsome young man who has the perfect girlfriend called Megan, who loves him to the bone and it is the same way with Sebastian. He is really brave and has a mad sense of humour, he will grow up to be a wealthy man who loves basketball and rugby sadly at the age of 14 or 15 Megan leaves Sebastian but that could always change depending on Megan's choice. Sebastian makes a drill song at the age of 11-12 because of his passion to be a driller. This might not go well for Sebastian but it depends on his choice's at the age of 16 Sebastian will go to prison for graffiti and vandalism but this is only for 23 months.

GIRL 1: Did you see that roadman on the bus he looked like a driller but he was pengggg.
GIRL 2: He was probably a sebastian.

Sebastian by truth**101 January 18, 2020

sebastian 

sebastian is a type of guy who will always be by your side and will always help you in a heartbeat. he is not incredibly dumb but also not very smart either but hes 100% weird which makes him more funnier than he already is. sebastian has gone through a s#@tty life and woud kill himself(not literally) to make other peoples pain stop. he may be a little chubby and he may not think that he look good but hes a really nice guy even tho people see him as a annoying piece of crap,well thats a complete f#%king lie.

sebastian:hey gu-omg what happened to willson!
jeff:he got pushed down by some kids
sebastian:be right back...

sebastian by pizzaLORD June 3, 2020

Sebastian 

He is gay probaly likes a boy that is taller then him

Sebastian-"Im a gnome"

Sebastian by &Fuck you& June 8, 2020

Sebastian 

A bitch nigga from 63rd who thinks he’s better than real niggas from o block he throws it back for his gang regularly and has sucked all of his “homies” dicks at least once

Hood nigga from 63rd: ayo where that nigga Sebastian my dick dry

Also hood nigga from 63rd: he watchin gay porn at his house

Sebastian by Young bands August 7, 2020

Sebastian 

He uses aimbot in Fortnite is a hacker. he turns the whole lobby into AI players. He will always take the best loot for himself and always has infinite amo. He will always steal your kills

Sebastian is a bot

Sebastian by boodyuvjeycfewuchvhsvefc September 10, 2020

Sebastian 

Probably a really good athlete with 50 girlfriends at the same time and is super hot and has a large penis and is a party monster

Girl1: Damn look at Sebastian
Girl2: He’s so hot

Sebastian by Girl123457643 October 9, 2020