What does "Chuck a sickie" mean?
It means taking a day off work by saying you are sick when you are not. Chuck is an informal way of saying take in this phrase, and a sickie is the day off.
The saying in a sentence
The saying
Chuck a sickie
Example
I chucked a sickie to go to the beach.
When you use it
Use it in a casual story or joke about someone skipping work. Chucked a sickie is the past-tense form.
When you do not
Avoid it when explaining a genuine illness or writing to your manager. It suggests the person is pretending to be unwell.