Y-fronts
Longman Dictionary of Contemporary English 5++LDOCE 5++Y-fronts /ˈwaɪ frʌnts/ noun [plural] trademark British English DCCmen’s underwear which has a part at the front shaped like an upside down Y 〔前裆部呈倒Y字形的〕男内裤，三角短裤
Examples from the Corpus
Y-fronts• And he wears these horrible Y-fronts, with his Batman T-shirt tucked into them!Y-fronts nounChinese
men’s the underwear at has like part a Corpus front shaped which
Y-fronts
Y-fronts /ˈwaɪ frʌnts/
noun [plural] trademark British English
men’s underwear which has a part at the front shaped like an upside down Y
Y-fronts /ˈwaɪ frʌnts/
noun [plural] trademark British Englishmen’s underwear which has a part at the front shaped like an upside down Y