This is a passage from an article on the idiom call it a day:
The phrase "call it a day" is a fairly commonly used idiom that means to leave or stop doing the current activity. Usually, it is used at the end of a workday or an otherwise strenuous activity to indicate that the day of hard work or play is finished and it is time to go home and relax for the evening, although this is not always the case
What does indicate mean mentioned in the passage? I've looked it up on Dictionary.com and there are two definitions that seems to fit the context, but I'm not sure which is the most appropriate or maybe neither of the definitions fit the context at all. They are:
- to be a sign of; betoken; evidence; show: His hesitation really indicates his doubt about the venture.
- to state or express, especially briefly or in a general way; signal: He indicated his disapproval but did not go into detail.