Fifty-four-forty or Fight

[ fif-tee-fawr-fawr-tee, -fohr- ]
/ ˈfɪf tiˌfɔrˈfɔr ti, -ˌfoʊr- /

U.S. History.

a slogan popular in 1846, especially among Democrats, who asserted U.S. ownership of the entire Oregon country, including the part that Great Britain claimed between 49° and 54° 40prime; N latitude.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019