She had a caustic tongue and great power of oratory.
Even my mother, with her caustic tongue, seemed to understand it somewhat.
His caustic tongue did not make him a favorite among the House, and his principles were quite conservative.
Especially if it meant they might be sent into the house to face the caustic tongue of their captain.
Bill, top right, has a "caustic tongue and a lashlike sense of humor."
As always, it was Annie's caustic tongue that got them into trouble.
Anyone who had once been on the receiving end of that caustic tongue wouldn't want to repeat the experience in a hurry.
"He has a great caustic tongue, and he knows it."
At her worst she was a young crone, with a caustic tongue, whom no man would tolerate.
He had a gossipy streak in him and a mean, caustic tongue.