noun
men's toilet; urinal
Colloquial term for a men's restroom or a urinal, often used in casual conversation.
すみません、男子便はどこですか？
Excuse me, where is the men's toilet?
男子便が混んでいて、女子便を使わせてもらった。
The men's toilet was crowded, so I was allowed to use the women's.
Formal term for 'urinal', whereas 男子便 is a casual, everyday word.
Compound of 男子 (だんし, 'male') and 便 (べん, 'toilet' or 'excrement'), literally 'men's toilet'.