This is the 16759th most frequent Polish word.
wyczyniał
"Wyczyniał" means "was doing" or "was up to" (often referring to unusual or surprising actions).
In this sentence, 'wyczyniał' is used to ask about someone's potentially inappropriate or mischievous behavior during class.
Co on znowu wyczyniał podczas lekcji biologii?
What was he up to again during the biology lesson?
Here, 'wyczyniał' reflects surprise about one's dog's antics or unexpected behavior.
Nie mogę uwierzyć, co mój pies wczoraj wyczyniał w ogrodzie.
I can't believe what my dog was doing in the garden yesterday.
The word 'wyczyniał' is employed to describe someone's actions on the dance floor, possibly unusual or attention-catching behaviors.