1656. Trapp, Comm. Acts viii. 9. Such a blab the devil had blown up there, as a small wind may blow up a bubble.
1861. Ramsay, Remin., v. (ed. 18), 115. Ive had the blabs [note, Nettle-rash].
Hence Blab-lipped = BLABBER-LIPPED.
c. 1430. Chester Pl. (1818), 41. If any blabb-lipped boyes be in my way They shall rue it by mighty Mahowne.
1591. Harington, Orl. Fur., XLIII. cxxviii. Blab-lipt, beetle-browd, and bottle-nozed.