Refusing to be outdone, she snapped back with a few sharp words.
Tips
usage
抢白 is a literary/written verb meaning to publicly rebuke or sarcastically retort to someone's face — it carries an embarrassing, in-the-open quality that simple 批评 (pīpíng, criticize) lacks. The Xinhua dictionary glosses it as 当面指责或奚落 ('to blame or mock someone face-to-face').
memory
Think of 抢 (qiǎng, to snatch/grab) + 白 (bái, to say plainly, as in 表白 biǎobái 'declare openly'). 抢白 = 'snatching the floor to say something plainly cutting' — interrupting someone with a sharp open rebuke.