酒桌上他那粗俗的笑话逗得大家又笑又尴尬。

His ribald comments at the dinner table made everyone laugh awkwardly.

ribald 是形容词，来自古法语，原指"粗俗下流的"或"猥亵的"，特指那些用粗俗幽默方式谈论性话题的言行。这个词常用来形容那些虽然让人发笑但略显低俗的笑话或评论。