A grandmaster of bation is someone who is internationally celebrated for blowing spunk from his junk to virtuosic standards.
Often results in great riches and fame.
Fred: You remember Ned who used to live in his mom's basement and play video games and whack off all the time?
Ted: Yeah...
Fred: Well, now he's a grandmaster of bation and lives in a villa on the Riviera.
Ted: OMFG! I'm so jealous!