How to Say "nasty things" in Spanish
The Spanish word for “nasty things” is “peste” — B2 level. This is a very common word in everyday Spanish.
English → SpanishB2
nounB2informal
when speaking poorly of someone

Examples
Mi ex habló pestes de mí después de romper.
My ex said nasty things about me after breaking up.
Este niño es una peste, no para de gritar.
This kid is a real pest; he won't stop screaming.
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