口出狂言

to speak conceited nonsense / to come out with arrogant claptrap

mouth / classifier for things with mouths (people, domestic animals, cannons, wells etc) / classifier for bites or mouthfuls

to go out / to come out / to occur / to produce / to go beyond / to rise / to put forth / to happen / (used after a verb to indicate an outward direction or a positive result) / classifier for dramas, plays, operas etc

variant of 出[chu1] (classifier for plays or chapters of classical novels)

mad / wild / violent

ravings / delirious utterances / kyōgen (a form of traditional Japanese comic theater)

words / speech / to say / to talk