Any person at all; used after negatives or threats to mean 'even the most ordinary or any given person.'
Someone regarded as typical or universal in a given context, often used to emphasize that an action would apply to anyone.
2.
SpainLatin Americacolloquialcritical
A hypothetical exemplary or prominent person (sometimes the most distinguished or fastidious), used to underline that even such a person would react or judge in a certain way.
Examples:
ES: Todos me temen. Saco mi revolver y me lío a tiros con el más pintado.
EN: They had me hemmed in, so I pulled my gun and I clipped one down there and one man...
ES: Estaba dando respuestas que el más pintado consideraría ridículas.
EN: She was giving answers that the average person would consider ludicrous.