ribaldry

Vulgar, lewdly humorous language or joking or an instance of it.

The qualities or acts of a ribald; licentious or foul language; ribald conversation; obscenity; indecency.

The talk of a ribald; low, vulgar language; indecency; obscenity; lewdness; — now chiefly applied to indecent language, but formerly, as by Chaucer, also to indecent acts or conduct.

Joking or humorous language done in a vulgar or lewd fashion.

ribald humor

behavior or language bordering on indelicacy