An informal or humorous term for someone who is a member of a club or frequents clubs regularly, or who is enthusiastic about club activities.
From club + -ster (a suffix meaning one who does something, from Old English -stere). This is a lighthearted, informal formation that gained use in the 20th century.
The -ster suffix is one of English's most playful word-building tools—we use it for everything from 'hipster' to 'mobster,' and it often carries a hint of humor or mild mockery about someone's identity or hobby.
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