south-of-the-border
UK[ˌsaʊθ əv ðə ˈbɔːdə]US[ˌsaʊθ əv ðə ˈbɔːrdər]
adj
Relating to or characteristic of Mexico, especially as perceived from the United States.
adj
Relating to or characteristic of a country immediately to the south, especially as perceived from a neighboring country to the north.
Etymology
The phrase "south of the border" originates from a literal geographical description, meaning simply "located to the south of a boundary line." Its specific association with Mexico is a 20th-century American cultural development, heavily popularized by the 1939 song "South of the Border (Down Mexico Way)." The phrase leverages the basic English directional "south," the preposition "of," and "the border," referring explicitly to the U.S.-Mexico border. Through consistent use in media, tourism, and marketing, this literal description evolved into a fixed adjective evoking the cultural, culinary, and perceived exotic qualities of Mexico from a U.S. perspective. Its logic is one of metonymy, where a geographic descriptor comes to stand for the entire complex of associations related to the place it denotes.
Analysis
This is a fixed idiomatic phrase functioning as a compound adjective. It is not productively formed from separable morphemes in the modern sense but is a lexicalized prepositional phrase.
Examples
We're craving some south-of-the-border cuisine tonight, so let's get tacos.
The resort offers a south-of-the-border experience with its vibrant decor and mariachi bands.
His writing often explores themes from south-of-the-border folklore and mythology.