noun
drunkard; heavy drinker; boozer
Colloquial and somewhat derogatory term for someone who habitually drinks to excess.
あの飲んだくれは毎晩バーにいる。
That drunkard is at the bar every night.
彼は若い頃は飲んだくれだったらしい。
Apparently he was a heavy drinker when he was young.
酔っ払い is a more general and slightly less derogatory term for a drunk person, while 飲んだくれ specifically implies a habitual drunkard.
酒飲み is a neutral term for a drinker or someone who likes alcohol, without the negative connotation of 飲んだくれ.
Derived from the verb 飲む (to drink) with the suffix たくれ, which adds a derogatory or contemptuous nuance, similar to ふざけたくれ (joker) or ほざいたくれ (blabbermouth).