Resembling beef; having qualities of beef; somewhat beefy or beef-like.
From 'beef' + suffix '-ish' (meaning somewhat or resembling); suffix '-ish' is productive in English for approximate descriptors.
The '-ish' suffix is so flexible that English speakers can add it to almost any word to mean 'kind of like that'—'beefish' means 'kinda beefy' in the same way 'reddish' means 'kinda red.'
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