でようか slang for で良いか?


This is the sentence I heard in an anime.

コーヒーでようか or コーヒーでよか.

I definitely did not mishear it for yoi 良い. Is this some slang for yoi? If so,
which is the correct one? Stress or no vowel stress.




The sentence is

> コーヒーいれようか _Shall I make some coffee?_

（入れ-る or 淹れ-る can be used according to your taste)

「いれ」 part is pronounced weak in the original audio, which would explain why
you heard it as 「で」．

