Used in casual settings among friends or colleagues, not in formal situations.

Informal Usage

Implies that payment is overdue or part of a prior agreement.

Expectation of Payment

Often used to nudge someone in a friendly way to pay their share.

Implies everyone should take part and contribute what they can.

When used in contribution situations, it carries a positive, generous connotation.

Often used when assistance is urgently needed for a cause or person.