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Short for the two words "Silly Master." Or, depending on how you use it, it can mean Silly Masturbater. Mostly used while texting.
Ex 1:
"Laughing my fucking ass off, you're a silmaster at this game."

Ex 2: (Said by an Australian, or a British person.)
"Oi, get oveh he'e ye silmasta'"
SilMaster by NoobHammer May 11, 2021
Related Words

Shootin Sillys 

1.) Ejaculating. 2.) Ejaculating semen in someone's particular direction.
Jenn: Damn yo, u got all that jizz on ur tits

Starr: ya my boyfriend was fuckin shootin sillys, again

Jenn: Dat mother fuckaa!!
Shootin Sillys by DonkeyDildos March 28, 2013
The scent left behind by perfume, usually after the subject has passed.
Man: Her perfume came on a bit strong, but the sillage was perfect.
Sillage by Xanalhu February 25, 2011
Willis is Sillis, dont be like Willis
Hey, Your Sillis

Sillarge 

Combination of "silly" and "large". Used to describe achievement/act/incident of great significance. Most likely to be found in the lexicon of students at the University of St Andrews, where the term originates.
"Shagged that bird from last night, she was a solid 7 #sillarge"

"Just won 10-1 at FIFA, not even one of them was a Jew Goal. Sillarge."

"Went through a whole series of Game of Thrones last night, sillarge."
Sillarge by RicYaz191 May 4, 2014
Silas is an amazing guy. He is always there for you and loves you honest. He is emotional and sensitive, but a real man. He will always protect you. He makes you smile always, also if you’re sad.

He likes to play video games and loves sweets.

Silas is the most sweet and loving person you will ever meat.

Never let Silas go or hurt him.

I love you Silas. ❤️
A: He is the greatest in the world
B: I know, he is a Silas.
Silas by Lalelunaa October 16, 2020
More from Urban Dictionary
A US deep south term for an alligator. Usually used in the Cajun dialect.
Take the big pirogue, I saw a huge swamp dog out there earlier.
swamp dog by Crystal Ambrose May 22, 2006
Word of the Day on October 12, 2026

Throat Sweats 

The feeling and build up in your mouth/throat of saliva that sometimes accompanies nausea.
Oh man those burritos gave me the throat sweats, I hope I don’t have food poisoning.
Throat Sweats by TacoFings420 April 23, 2024
Word of the Day on October 11, 2026
Being ignored by someone when making a statement or asking a question. Also known as blanked and turfed.
Person 1: Did u watch ** last nite?
Person 2:......
Person 3: O no u got aired!
aired by Pietro February 9, 2005
Word of the Day on October 10, 2026

piddlefart

Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
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