top out is a verb meaning "give up one's career just as one becomes very successful". It carries 3 recorded senses.
give up one's career just as one becomes very successful
“The financial consultant topped out at age 40 because he was burned out”
to reach the highest point; attain maximum intensity, activity
“That wild, speculative spirit peaked in 1929”
“Bids for the painting topped out at $50 million”
Definitions, synonyms and semantic relations for top out come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.