Examples:

• I don't suppose we can forget about this and just call it a night, huh?
• For now, I think it would be best to call it a night.
• Any other items before we call it a night?
• The attorneys in the corner won't call it a night.
• Though somebody's already decided to call it a night.
• Hey, hon, maybe we should... call it a night.
• Just punch him in the face, we'll call it a night.
• Yeah, Marty didn't want to call it a night, either.
• Why don't we just call it a night?
• Listen, maybe we should, uh, call it a night, huh?