max out

verb

1. informal,  to reach or cause to reach the full extent or allowance

   the goal was to max out the customer's credit card

Idioms and Phrases

Exhaust one's options, capacity, or the like by producing or performing to the maximum, as in The weight lifter maxed out at 180 kilograms . [ Slang ; late 1900s]

Reach a point at which no more growth, improvement, or benefit is possible, as in The salary for this job maxes out at $90,000 . [ Slang ; late 1900s]

Relax, take things easy, as in Let's go to the beach and max out . [ Slang ; late 1900s]