business end

Meanings

1. The part of a day, event, or place (such as a city or district) used for business activities.
2. The part of an object (chiefly a tool or weapon) that is physically used for its operation, rather than some other part such as the part by which it is held.
3. The part of an activity, period of time, etc., which is most important and produces the significant result.

Etymology

From business (noun) + end (noun).