Cut backBy Pamela, July 29 2019
When you cut back on something, you reduce the amount of money, time or energy that you spend on it. If you decide to cut back on an activity, it’s likely because it was being done in excess.
We usually use "cut back" with “on” and then a description of the activity. It can also be used without “on,” especially if the expression is placed at the end of a sentence.