repiä pelihousunsa

repiä pelihousunsa (literally, “to tear one's game pants”)

1. (idiomatic) to lose one's rag (get angry)

• See repiä.
• pelihousunsa is in the plural and normally in the accusative case (which appears identical to the nominative case in the plural), but is inflected in the partitive case to express an ongoing or incomplete action or if used in the negative.
• pelihousunsa also receives a possessive suffix:

• menettää malttinsa, hermostua, suuttua, raivostua