sickrat 

A scrawny little fuck that has balls bigger than a bull moose. This person can talk ridiculous amounts of shit and do ridiculous things and 90% of the time get away with it.

Nicky is a SICKRAT.
What a fuckin SICKRAT

sickrat by ballsy guy May 23, 2007

Sickation 

Using sick time at work to get a paid vacation because you are about to lose your accumulated sick time or because you want days off but have no more vacation time.

I really want to get away next week but I used all my vacation time, I'll just take a sickation.

Sickation by benny_hill_show June 28, 2008

sickbatical 

When an extremely overworked person contracts an illness, (cold, flu, infection etc.) the benefit of this is a forced slowdown when they wouldn't have gotten a break otherwise.
Even though the person is fighting sickness it is a positive experience used for relaxation and self-reflection.

My schedule has been so hella crazy and I got fucking walking pneumonia. It's dope though 'cause I really needed a sickbatical and just getting a break from all the fucking chaos was awesome.

sickbatical by luke alexander May 28, 2019

SickMateSick 

When something is really good and then times 2 which is why there are 2 Sicks and due to the fact the word is normally said to friends Mate was added in the middle. This word is usually used by wogs or people of eastern European descent who grew up in Australia.

person1: I didn't use a condom but she didn't get pregnant.

person2: oh SICKMATESICK!

SickMateSick by assbrendan May 30, 2020

Sick Rat 

Most commonly used in Australia. Can be used as an insult to anybody, but generally laid off at your friends or acquaintances in a jokingly manner.

Can also have the potential for appraisals, such as another Australian colloquialism fully sick('fully sick, mate' after can be used as well).

"Your such a sick rat."
OR
"Your such a sick rheeet" (emphasize on the rat to show even more disgust)

Sick Rat by Jonathan.M November 8, 2007

sickatating 

People or events that have the power to make one physically ill.

"sleeping with ti would be ultimately sickatating"

sickatating by The Witch Doctor April 6, 2009

sickatating 

An object or action that has the power to make you physically ill.

"The smell of that fresh dog crap is sickatating."

sickatating by Danielle September 17, 2003