INTERLOPER Meaning of INTERLOPER in English n. 1 an intruder. 2 a person who interferes in others' affairs, esp. for profit. interlope v.intr.[ INTER- + loper as in landloper vagabond f. MDu. landlooper ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012