A person with dark skin or very black hair — the Southern Cone equivalent of 'moreno.' In Argentina and Uruguay, 'morocho' is a physical descriptor without negative connotation, used naturally as a nickname or description. Dark features in a region where many have European ancestry.

A small child or very young person with little experience — said affectionately or slightly condescendingly depending on tone. In Uruguay and Argentina, 'chiquilín' has the warmth of watching a kid grow up: endearing when said to a child, pointed when said to someone who should know better.

Embarrassment or paralyzing shyness that stops you from doing what you want to do. In Argentina, having 'batata' means your nerves took over — you wanted to speak, to act, to approach someone, but the embarrassment froze you solid right when you needed to move.

A red flag — a warning sign in a person or relationship that signals something is seriously wrong. The term crossed from English into Spanish social media vocabulary completely intact, and now no conversation about dating is complete without spotting or dismissing red flags.