Sir William 

When one would fist-fuck a girl forearm deep, on Christmas, and leave her laying on her bed hemorrhaging. Thus, leaving the possibility of hospitalization up to her parents, who may have been in the next room over.

Shit, you really Sir Williamed that girl to death last night. She bled like a stuck pig.

Sir William by Horny n' Houston June 14, 2009

Sir William 

1.A person of very high class and maintnence.
2.A person who is snobby.

1.That guy is really Sir William. Have you seen his Lamborghini?
2.He's so Sir William he turns his nose to everyone.

Sir William by Kaiine Joshua Sims January 1, 2008

Sir William Wallace

infamous scotish rebel leader, as played by mel gibson

they can never talk are spirit

Sir William Wallace by the great one May 13, 2005

Dirty Sir William 

The act of giving a handjob to handicapped man in the men’s stall of a Walmart

Guy 1: Did you hear what he did at Walmart? Gave the guy a Dirty Sir William!
Guy 2: well that’s one satisfied cripple

Dirty Sir William by PounderProductions July 9, 2025

SirWilliam 

A sex position for homosexual males. One person lies on his back and pulls his legs up at the knees. The other guy sits on his butt with his legs extended outward, and slides into position to penetrate the one on his back anally. Once penetration is achieved, either partner can masturbate the one lying on his back while he's being fucked.

Lebubu and Joker love to SirWilliam

SirWilliam by eatdirtfartdust January 19, 2009

Sirwilliam 

A sexy lightskin who loves to play basketball and loves to show us his knees. He loves getting his knobbles knocked and loves cold leftovers. Sir really likes when his feet are outside of the blanket.

Omg is that Sirwilliam I LOVE HIM OMG SIRWILLIAM KNOCK MY KNOBBLES

Sirwilliam by Hsjehejshahahajsh March 25, 2021

Sirwilliam 

Sirwilliam is a sexy lightskin who loves to play basketball and show his knees. Sirwilliam is such a jokester and is popular, he has a lot of friends. Sirwilliam loves to knobbles knocked and his hips dipped, and he LOVES hanky panky after a game if you know what I mean wink

Person 1: Omg is that Sirwilliam?
Person2: He’s so cute!
Person3: Hell yeah he is I want him to knock my knobbles

Sirwilliam by Noviakelis April 12, 2021