At full speed, with maximum luxury, or going all out. In Spain, a todo tren means nothing held back — moving at full capacity, spending freely, or doing something with complete commitment and style.

A nerd or geek who's deeply into niche interests like anime, video games, comics, or sci-fi. In Spain, friki is the local version of 'freak' — someone whose passion for their hobby defines them, often proudly worn as an identity.

Kitsch, tacky, and embarrassingly flashy — bad taste personified. In Spain, hortera describes something or someone that's trying to look fancy or cool but missing completely — too loud, too cheap-looking, without any class.

A very bad mood combined with a hostile, aggressive attitude. In Spain, mala ostia is one step beyond bad temper — someone with mala ostia is looking for confrontation, ready to snap, and you'd be wise to keep your distance.