Koepka delivers hilarious response to online troll

As dangerous weather suspended play at the BMW Championship, Brooks Koepka took out his phone in the clubhouse and opened up Twitter.

He had a mention waiting for him, where a fan called him out for his lack of effort. Koepka drummed up a hilarious response.

Koepka was 1-under on his round at the time of the message. He finished the day even par and is currently projected No. 2 on the FedEx Cup points list.

The 29-year-old has earned over $30 million in official PGA Tour money for his career. He can add to that if he wins next week's Tour Championship and its $15-million first-place prize.