Sebastian’s are the type of guys who can be really shy and socially awkward at first, but once you get to know them they are the most fun and exciting people you will ever meet. He is usually blonde with light blue eyes and sometimes has brown hair. His body is perfectly sculpted with killer abs and biceps for days. He’s super sweet and is one of the best boyfriends you could as for. If your friends with a Sebastian then your extremely lucky because they will always be there for you in a heartbeat. He is the first one to try new things no matter how crazy. When it comes to his girlfriend, she comes first. He may try to keep her away from his crazy side because he wants her to think the best of him, but with Sebastians there is no imperfections. He loves to play fight with his girlfriend but always lets her win. If your friends or dating a Sebastian then never let him go because you’ve got a good one.
Guy: “yo Sebastian is my guy, he is always there for me”

Girl: “is that your boyfriend?”
Girlfriend: “yea, his name is Sebastian”
Girl: “clearly, he treats you amazingly!!”
by Mcnicks December 24, 2019
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A nickname is seb. Seb is sound and is always nice to everyone and the perfect couple for someone with the name Sebastian is s+e s+s s+g
John said Sebastian you are sound
by 69 her December 19, 2020
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A boy with the best penis in the world very well in bed and with the tongue he knows how to deal
Omg i like to fuck with Sebastian
by Pinkpony2000 January 9, 2017
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A demon butler to Ciel Phantomhive. Is creepy, amusing, sexy and downright one hell of a butler. From the show Black Butler.
Ciel: Where is my tea, Sebastian?
Sebastian: Right here my lord. I also have your lesson plans and have killed the dred demon, as you had asked.
Ciel: Oh, have you?
Sebastian: Yes. For you see, a Phantomhive butler who can't do this much isn't worth his salt.
by SebastianFaithfulServant October 9, 2010
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1. A tall, dark, and handsome kind of guy with big dreams and an even bigger heart. Overflowing with charisma and personality, tending to attract every female in a one mile radius. Friendly to all, but only opens up to those he's really close with. A good judge of character by most people's standards.
2. Usually an exotic breed, of a foreign background. Most often fluent in more than one language.
3. Having statuesque features, like that of a Roman God; devastatingly good-looking.
1. Wow, do you see that devilishly handsome guy over there? He must be a Sebastian!
2. From this angle, he has all the features of a Sebastian.
3. His words are like poetry, and he sounds like he could be a Sebastian.
by yourartgotmehere February 4, 2010
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The most amazing guy you will ever find. If you find a Sebastian, be sure to alwase be there for him. Extremely intelligent, will always be there for you, shoulder to cry on, loves memes. Sebastian is a truely amazing individual, hes one of the move caring guys you will ever find, and if you meet the one and only im talking about, you will want to be there too.

Sebastian is a loving soul, he is alwase there for you whenever, though he may be countries apart from you, he will cheer you up in a heartbeat <3. May be a Yu-gi-oh nerd, too. And Sebastian, I just wanted to say, I love you, though your states away, I love you, and miss you. Hopefully I see you again, bud.
Me = Aly
Aly: Hey, Sebastian!
Sebastian: Hey, Aly!
Aly: Do you wanna hang out today?
Sebastian: Sure!
by Azumi Hayami August 22, 2019
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