tomfoolery; monkey business; stupid act
Refers to foolish or reckless behavior, often used in admonitions like 馬鹿な真似をするな (Don't do anything stupid).
Stop that foolishness.
He got drunk and did something stupid.
Similar meaning but uses the adjective 馬鹿げた (absurd), emphasizing the ridiculousness of the act.
More literary and formal; 愚か implies foolishness in a serious or moral sense.
Standard kanji spelling for the phrase.
Katakana spelling of 馬鹿, often used for emphasis or in casual writing.
Phrase composed of 馬鹿 (fool, idiot) + な (attributive copula) + 真似 (imitation, behavior). Literally 'foolish imitation/behavior'.