Dictionary / Vocabulary / 猥談
わいだん
indecent talk; obscene talk; lewd conversation; dirty story
Also written ワイ談、わい談
「や、それほどでも。せいぜい、大きさ比べたり、わい談するくらいだし」「大きさって何の？」「ナニの」
"No, not so much. At most comparing sizes, telling dirty stories." "Sizes of what?" "Of 'that'."