Someone dressed in an absurd or hideous way, or anything so ugly it's almost offensive to look at. Used across Spain, Argentina, Colombia, and Mexico to describe fashion crimes and eyesores of all kinds — the person who shows up to the office in a clown costume energy.

In Argentina, to ruin a situation, cause trouble, or make something stop working. It can also mean to betray or inform on someone.

A person who is a burden, insisting and weighing down with their presence, always being one too many and nobody knows how to tell them.

Someone in their thirties — typically said with a mix of humor and mild existential crisis. In Spanish-speaking countries treintañero captures that specific life stage where you're not exactly young anymore but definitely not old, and everyone around you is getting married or going through a phase.