Wiktionary
cut like a knife
vb. 1 (context simile English) To sting severely, to cause a sensation of stinging, especially said of cold weather. 2 (context simile English) To be very sharp (of a character, or remark)
Usage examples of "cut like a knife".
The wind cut like a knife up here, and shrilled in the night like a mother mourning her slain children.
She said so little, spoke so seldom, that when she did say anything her gentle voice cut like a knife.
The sky was leaden, and the wind whistled around the docked ships and cut like a knife.
The men of the world who flocked to pay their court to her, and the popinjays who followed them, all knew this look and a tone in her rich voice which could cut like a knife when she chose that it should do so.