What does James k polks slogan mean?

James K. Polk's slogan, "Fifty-four Forty or Fight!" referred to the northern boundary of the Oregon Territory, which Polk and his supporters wanted to establish at latitude 54°40′. The slogan encapsulated the expansionist spirit of the era, suggesting a willingness to go to war with Britain over the territory. Ultimately, Polk negotiated a settlement that established the border at the 49th parallel, avoiding conflict while still achieving his goals of territorial expansion.