This is the 9099th most frequent Portuguese word.
besteira
"Nonsense" or "silly thing."
Here, 'besteira' implies 'something foolish', describing an ill-advised action that may lead to negative consequences, such as a stomach ache.
Comer muito doce de uma vez só é besteira.
Eating too many sweets at once is foolish.
In this sentence, 'besteira' is used to mean 'nonsense', typically referring to inappropriate or frivolous comments during an important occasion.
Não fale besteira durante a reunião.
Don't say nonsense during the meeting.
In this context, 'besteira' means 'trivial matter,' highlighting something insignificant that led to a disappointing result.