also: さけくせ · しゅへき
noun
drinking habits; drunken behavior
Refers to a person's characteristic behavior when drunk, often with a negative connotation (e.g., becoming aggressive, weepy, or troublesome). Commonly used in phrases like 酒癖が悪い.
彼は酒癖が悪くて、酔うとすぐに怒り出す。
He has bad drinking habits and gets angry as soon as he's drunk.
酒癖のせいで友達をなくした。
I lost friends because of my drunken behavior.
On'yomi reading; rarely used in modern Japanese.
酒乱 specifically means becoming violent or disorderly when drunk, while 酒癖 covers a broader range of habitual drunken behaviors.
Compound of 酒 (sake, 'alcohol') and 癖 (kuse, 'habit'). The reading さけぐせ is a standard kun'yomi compound; しゅへき is the on'yomi reading, now rare.