Used to express exaggerated national pride or as a humorous self-deprecating phrase implying that Chile is the best country in the world. Often used ironically, in memes, or simply as a humorous catchphrase.
to sound, to probe (test with a probe); to plumb, to fathom (to measure something's depth); to sound out (to figure out someone's intent, mood, opinion or preference usually indirectly); to canvass (conduct a survey); to plumb, to explore (e.g. the depths of)