quarrelsome drinker; angry drunk
Describes a person who becomes belligerent or argumentative when drinking alcohol. Often used in contrast with other 上戸 types like 笑い上戸 (happy drunk) or 泣き上戸 (weepy drunk).
He's a quarrelsome drinker; as soon as he drinks, he starts fights.
父は普段は温厚だが、怒り上戸だから飲み会では気をつけている。
My father is usually gentle, but he's an angry drunk, so I'm careful at drinking parties.