call it a night

answer the call of nature

To satisfy a bodily urge to urinate or defecate.

bank night

An event where patrons are enticed to buy entry tickets into some venue, for example a movie theater, with the anticipation that they will be entered into a drawing to win an amount of money if their ticket is drawn and they are on-site at the time of the winning.

call a lid

To inform the press that no further news will be released from a governmental body that day.

call a spade a spade

To put it bluntly, to be outspoken; to speak the truth, to describe things as they really are.

call an audible

To change plans at the last minute in response to new information.

call it

To call it a day

call it a day

To cease an activity.

call it an early night

To go to bed or cease one's activities earlier in the evening than usual.