sebastard 

Anyone named Sebastian who happens to also be a bastard (literally or figuratively)

dude1"whats that asshole's name again?"
dude2"uhhh sebastian I think."
dude1"you mean sebastard"

sebastard by sebastian crucial December 14, 2006

sebastard 

someone who is being mean, rude, bastard, etc

"god jen you are being a real sebastard, why did you eat all of my tootsie rolls?"

sebastard by jrap March 15, 2008

seatard 

Seatard is a word for the most useless animal in the water, the manatee.
The word was coined by Taylor Ramsauer fo the Mediocre Show.

Eric: Manatees are the retard of the sea.
Taylor: they are seatards.

"All seatards do is get stuck in boat propellers.

seatard by KieranK August 5, 2007

sebeetard

The most annoying bunch of people who think their so superior to all Roblox players they're roblox band kids basically
their logic is bad grammar = extremely comedic gold. they abuse the terms like disrespecc and s n i f f when something mentions cocaine or sugar or salt.

sebeetard: you disrespecc
Lolorator: 😐

sebeetard by Lolorator360 November 15, 2021

Sebastain 

A weird ass nigga that smells like chicken leg piece.

wow. is that a sebastain. hes sooo hot with those chicken leg piss.

Sebastain by legrenee January 18, 2020

scrastard

An undersized, over-compensating, insecure extrovert, often encountered engaging in self-aggrandizing activity which usually underscores rather than offsets his (or her) inadequacies.

While trying out for the part of Magilla Gorilla, the scrastard needed to stuff pads and pillows into the sagging voids of the costume.

scrastard by waz November 18, 2004

gebastard 

Used to refer to someone who is a complete bastard and extremely annoying.

The "ge" standing for extreme.

He is such a gebastard.

gebastard by imnotgepitch October 22, 2010