Akademik

for keeps
adverb
a) With an agreement or intention to retain what one gains or receives.

When we gamble at poker, we play for keeps.

b) To compete seriously, with a strong resolve to win or succeed, as in sports or business.

"We both got a job to do. They play for keeps and we play for keeps too," Haggans said.

Syn: for good, once and for all

Wikipedia foundation.