acid wit

• sharpFine-edged, or astute
• bitingHarshly critical or cold
• sarcasticMockingly insincere in tone
• causticChemically burning; bitterly mocking
• sardonicGrimly mocking

cutting · dry · acerbic · barbed · tongue · clever · sting · bitter · quip · retort · snark · wry · mordant · rapier · scathing · irony · deadpan · zingers