knickerbockers UK /ˈnɪkəbɒkəz/US /ˈnɪkɚbɑkɚz/ noun[plural only]1 •Men's or boys' baggy knee breeches, of a type particularly popular in the early 20th century.Five men and a woman, two young girls,[…], and a boy […] are at the machines sewing knickerbockers, “knee-pants” in the Ludlow Street dialect. — 1890
Knickerbockers noun2 •The formal name of the New York Knicks, a team in the National Basketball Association •(historical) A short-lived 19th-century baseball team in New York