noun, noun or participle which takes 'suru', transitive verb
drinking straight from a bottle
Refers to the action of tilting a bottle and drinking directly from it, often associated with casual or informal drinking. Can be used as a noun or with する to describe the act.
彼はビールをラッパ飲みした。
He drank beer straight from the bottle.
ラッパ飲みは行儀が悪いと思われることもある。
Drinking straight from the bottle is sometimes considered bad manners.