[f. the vb.: see also BLIRT.]
† 1. An eruptive emission of breath from the mouth, esp. as expressive of contempt. Obs.
1580. North, Plutarch (1676), 633. Meaning to give Cassander a slampant and blurt.
1611. Florio, Chicchere, a blurt with ones mouth in scorne or derision.
2. An abrupt impulsive utterance or outburst.
1865. Carlyle, Fredk. Gt., VI. XVI. ix. 245. This blurt of La Mettries goes through him like a shot of electricity.