матом

using swear words, with profanity, with checkmate

m a t ə m → мат
мат swearing, profanity + ом Masculine instrumental singular
noun · singular masculine, instrumental Rare #51,692
using swear words, with profanity Often refers to Russian obscene language.
RU: Он ответил матом.
EN: He replied using swear words.
with checkmate Used in chess.
RU: Партия закончилась матом.
EN: The game ended in checkmate.
Declension of мат
SingularPlural
Nominative мат —
Accusative мат —
Instrumental матом —

А она меня матом.

And she swore at me.

— The Fool (2014)

Она изучала позиции с матом.

She studied positions with checkmate.

В армии матом не ругаются, а разговаривают.

In the army, they don't swear, they talk.