expression, noun, adverb
to a great extent; incredibly; rolling in
Used adverbially to emphasize an extreme degree, often with adjectives like 美味しい (delicious) or nouns like お金 (money). Literally 'to the extent that one groans', implying an overwhelming amount or quality.
このラーメンは唸るほど美味しい。
This ramen is incredibly delicious.
彼は唸るほどお金を持っているらしい。
He seems to have money to burn.
From the verb 唸る (unaru, 'to groan') + ほど (hodo, 'extent'), literally 'to the extent that one groans'. The phrase is used to express an extreme degree of something, often in a positive sense.