Meaning

noun English writer noted for early detective novels (1824-1889)

noun tall iced drink of liquor (usually gin) with fruit juice

origin* As an English surname, variant of Colin. * As an Irish and Manx surname, from Ó Coileáin (“descendant of Coileán”), see Cullen, McQuillan, and McCallion. * As a French surname, Americanized from Collin and Colette. * As a Slovene surname, Americanized from Kolenc, from koleno (“knee”) and the obsolete kolenc (“nipplewort”).

Etymology from Wiktionary, CC BY-SA 3.0