Runyonesque
/ˌrʌnjəˈnɛsk/adjective
Of, relating to, or characteristic of Damon Runyon or his style, language, or imagery; especially characterized by plot or language suggestive of gangsters or the New York underworld.
Origin
1930s; earliest use found in The New York Times. From the name of Damon Runyon (born Alfred Damon Runyan; 1880–1946), U.S. author + -esque.