1649 6 A Loyall subject hearing a Hel-mouth'd Vilaine say, the King was a Traytour, presently..slew the wretch.
1881 A. C. Swinburne i. ii. 36 That first lord of four That took in turn this hell-mouthed hag to wife.
1934 D. Thomas Let. 11 May in (1966) 126 Today I complain again for a hell-mouthed mist is blowing.