sinus duck

when your sinuses rupture after ingesting something highly acidic, like orange juice or lemonade.

a: oh damn, i’m a total sinus duck right now
b: no one cares dina.

by ray22 September 25, 2012

sinfulicious

An adjective used to describe something that is simultaneously fantastic and evil or terrible, such as drinking a beer someone was saving for themselves, driving someone else's nice car without permission, or sleeping with someone who's cheating on their boyfriend/girlfriend. In other words, a good thing made better by it being forbidden, but which also causes a bit of guilt.

I promised myself I'd stick to my diet, but I ended up eating some of that cheesecake anyway, and it was sinfulicious.

Man, that married chick is so hot, it's sinfulicious to be watching her like this.

I stole these sunglasses from my brother. They're awesome, but he's pissed. Totally sinfulicious.

by Talmanes November 30, 2005

Sifu

The term used for one's master in Chinese martial arts, unlike the Japanese sensai.

Yes, Sifu.
Right away Sifu.
On it Sifu.
Sorry Sifu.

by Gongfu August 25, 2004

Sinsur

marked by extreme genuineness or extremely free of dissimulation

Bitch, I will cut you, I'm so sinsur!
or
Damn, that new Atmosphere album is some quality music, so sinsur.

by L.R.M. April 18, 2008

Sinjury

an injury, illness, or condition derived from the indulgance of decadent or promiscuous activities. Any injury that happens while drunk and/or partying, usually hallmarked by a either not being able to either remember, or gracefully explain, how it happened.

Whoa, check out this bruise on my leg, where did it come from?

Dude you were totally wasted, thats one serious sinjury

by TheJAG77 December 27, 2009

sinuses

Sinuses are in your face. They are near your cheekbones, nose, eyes and forehead. If you don’t blow your nose and just suck snot in, your sinuses will get clogged with snot.

Logan: Hey Bro I can’t come to see Callie and Stacey , I’m sick.
Lino: Why are you sick bro, what did you do?
Logan: My sinuses are clogged.
Lino: Of course they are. Damn right they are.

by Patrisha Lembert February 2, 2018

sinus friction

Slang for "nose picking", funny because it sounds like "science fiction".

PETER: So, Bobby, what caused your car accident?

BOBBY: Well, don't tell anyone, but ... sinus friction.

by Mike Bozdog June 19, 2006