bigfoot

[ big-foo t ]
/ ˈbɪgˌfʊt /
Slang.

noun, plural big·feet, big·foots.

a prominent or influential person, especially a journalist or news analyst.

verb (used with or without object)

to assert one's authority or influence (over): lobbyists bigfooting around the Senate; a reporter bigfooted by a senior correspondent.

Origin of bigfoot

1975–80, Americanism; after Big Foot