What does “boludo” mean in Argentine Spanish?

Boludo is the defining word of Argentine and Uruguayan speech, and it swings entirely on tone. Among friends it’s “dude / mate” — ¿qué hacés, boludo? is a warm “hey, man, how’s it going?” Said sharply, it’s “idiot”: ¡qué boludo! (“what an idiot!”). The literal origin is crude (bola = “ball”), and pelotudo is its harsher, always-insulting big brother — never the friendly one.

The clip’s “qué culado, loco” rides the same register: rough, intimate Rioplatense banter where loco (“dude”) and boludo soften an insult into ribbing among mates. Outside that closeness, boludo lands as a real insult, so it’s not for strangers or bosses. From it grows a whole family — boludez (“nonsense / a trivial thing”), hacerse el boludo (“to play dumb”), al pedo aside — making boludo a true gateway into how porteños actually talk.