99 

doggy-style sex akin to 69

to watch TV that couple did a 99.

99 by bs & co March 18, 2005

99 

When a woman is performing a Mister Whippy from the anus (squeezing cum out onto her partner's face in a circular motion) and there is an accidental follow through planting a bit of brown on top.

I thought I agreed to only let my girlfriend to do a Mister Whippy from her arse for her birthday but one little fart later and I had a 99 on my face!

99 by Jean Dom February 26, 2010

99 

a cool number. 1 away from 100.

100-1=99

99 by dyl1st February 2, 2007

99 

BUTT FUCKING.

yeaah we were 99ing all night, now my ass is sore.

99 by rainbowhamburger July 12, 2010

99 

To have a poo that has the consistency and look and is similarly emitted to that of an ice cream you had in the UK from the ice cream man, costing 99p.

I've Just had a nice easy poo, it came out like a 99 !

99 by Apoclamite March 16, 2023

99 

goog night.. as g`nite

9=g 9 which is nine therefore night.

g`nite

99
=
g`nite

good night!!

99 by iono May 13, 2005

99 

Used by people on IM programs to tell the other person to "shut up, my parents are watching".

Maddog: Hey Sarah are you up for some sex?
Sarah: Sure thing when do you want it?
Maddog: 99
...
...
...
Maddog: Sorry my mum walked in.

99 by bublnsqeek August 10, 2005