Answer:
What does "call it a day" Mean? It means that they need to take a break.
Explanation:
When people say they need a break they said I call it a day. like example
1. I worked a lot I need a break to let me call it a day and get home.
2. I don't feel well, I need to call it a day and leave cause you can't get anyone sick...
3. My friend gets tired and need's a break she/he calls it a day.
When somebody says it maybe there:
Sick, Hungry, Tired. That's all for this!