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Use "gibbering" in a sentence
"Through all the apparitions that preceded you and that compose the parts of you, you rose gibbering from the evolutionary mire, and gibbering you will pass on, interfusing, permeating the procession of apparitions that will succeed you."
"A lot of the gibbering is clearing from sock puppets — we have several trolls adept at keeping multiple browser windows open."
"My father and older brother were in gibbering, shrieking hysterics."