ちょっと一杯[chottoippai] let's have a quick drink
ばつ一[batsuichi] being once divorced
一向[hitaburu] nothing but
サラダ一皿[saradahitosara] plate of salad

安全第一[anzendaiichi] safety first
一か八か[ichikabachika] sink or swim
一っ走り[hitoppashiri] spin (as in 'take a car for a spin')
一つ一つ[hitotsuhitotsu] one-by-one

緊褌[kinkon] loincloth
緊褌一番[kinkonichiban] gird oneself up
犢鼻褌[fudoshi] loincloth
越中褌[ecchuufundoshi] string loincloth
前褌[maemitsu] front of a mawashi

横褌[yokomitsu] either side of a rikishi's mawashi
褌担ぎ[fundoshikatsugi] rikishi of the lowest rank
六尺褌[rokushakufundoshi] traditional Japanese G-string for men
褌一つ[fundoshihitotsu] (wearing) a loincloth alone