出典:Wiktionary
出典:『Wiktionary』 (2026/04/10 01:08 UTC 版)
Used in the title of a 1915 film. Perhaps related to cardshark, which is in turn likely a variant of cardsharp; the hyphenated phrase billiard-sharp appears in The Mikado in 1885, suggesting that perhaps both terms evolved from sharp to shark in tandem.
poolshark (plural poolsharks)