Sixtyniner

Is the numerical representation of two loving partners engaging in oral sex with each other simultaneously. One yeets his erect penis into the other mouth, whilst the reciprocating the favour.

Jill: ooh I’m enjoying this sixtyniner
Jack: gobble this

by OhDaddyYesHarder March 19, 2020

Sixty Eight

A derogatory term used when a Nigga is too short to actually get a 69 going wit his girl.

Chris and his short Pinoy ass only 68 wit his bitch.

by Lysol June 13, 2004

siney

flaming poop bag

i saw a siney on your lawn

by siney dickmouth July 17, 2011

Sifty

When you have a fear of chalk or cannot touch anything with a "chalky" feel like teachers chalk, sidewalk chalk, blackboards, chalkboard erasers or even books that seem to have a "chalky" residue on them. Also, when you cut your finger nails and you cannot touch anything for a certain period of time because your fingers are too sensitive so to say. You may feel "sifty" or have "siftiness" if:
1. you cringe when you touch chalk or chalkboards
2. you cannot touch anything for a certyain period of time after cutting your nails
3. have a larger reaction than most other people when the chalk or chalkboard squeaks
4. if while you were reading this you cringed at anytime

Disclaimer: If you have "siftiness" or ever feel "sifty" please join our cause and ask for a small dry eraseboard from your teacher when you are asked to write on the board so that you do not cause a "sifty" reaction to chalk.

He wrote on the chalkboard with chalk and immediately felt sifty.

by JAN JAN THE DANCING MAN January 11, 2009

sintuous

while you are at it ; since you are doing that

I tell my old lady, sintuous up get me a beer!

by pleasant November 3, 2006

Sixty Dicks

A reading of temperature, much like Fahrenheit or Celsius. Sixty implies that the temperature is very high.

"Dude, I opened my car door and the leather seats were like sixty dicks"

by Scribler May 10, 2010

sintress

A guy that is really obnoxious and brags a lot. All the girls used to fall for him but now there is only one. (He normally lives in a small town) btw he turns out really ugly most of the time.

Sintress is so ugly!!!

by Cool.person.jk October 4, 2017