Umasim (en. To become sour)

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Synonyms

to become intense, to show a rise in heat or emotion

Just deal with it, your tone seems like it's getting sour.

Terapin mo na lang yan, mukhang umaasim na ang tono mo.

has turned bad in appearance or taste

Oh no, the milk has gone sour, throw it away!

Naku, umaasim na yung gatas, itapon mo na!

the situation is becoming intense or complicated

The situation might be getting serious, come here now.

Baka umaasim na ang sitwasyon, dumating ka na.