The phrase "best poker" refers to someone who is exceptionally good at playing the game of poker and is considered the most skilled or successful player among their peers. Full definition
Those with best poker hands during the day's ride will be winners. (cannonbeach.org)
Also it's the first good poker movie ever. (awardsdaily.com)
He just had a really good poker face and he was playing on the fact that we were able to develop stealth bombers in secret. (politics.stackexchange.com)