Ribaldry rhymes with:
baldry, childrey, heraldry, andrey, andry, ardrey, audrey, audry, baldry, brodry, cadre, chaudhry, childrey, condrey, cordrey, cowdrey, foundry, guedry, hendry, heraldry, husbandry, landry, laundry, madry, mckendree, mckendry, mondry, moudry, mudry, pendry, polandri, polyandry, seshadri, sundry, tawdry, wandrey, wizardry, zampedri
Ribaldry sounds like:
rebuilder, rehabilitator, revelatory