blatter UK /ˈblat.ə/US /ˈblæt.əɹ/noun 3verb 2forms 3 noun3 •A sound of rapid motion. •A hard battering of rain.Between the roar of the thunder and the blatter of the rain there were intervals of an astounding still, of an ominous suspense […] — 1901 •Blather; foolish talk. verb2 •To blather. •To hurry or rush noisily. formsblattered · blattering · blatters