hot and heavy

Adjective

idiomatic

(idiomatic) Passionate.

Japanese Meaning

情熱的 / 熱烈 / 激しい感情・情熱を伴う

Their romance grew hot and heavy over the course of a single summer.

彼らの恋は一夏のうちに情熱的になった。

Sense（1）

(idiomatic) Passionate.

They had a hot and heavy love affair during the summer.

more hot and heavy

（ comparative ）

most hot and heavy

（ superlative ）