noun

excessive talkativeness, especially on trivial matters.

the character’s comic garrulity

talkativeness,garrulousness,loquacity,loquaciousness,volubility,verbosity,verboseness,long-windedness,wordiness,chattiness,effusiveness,profuseness,communicativeness,expansiveness,mouthiness,gabbiness,windiness,gassiness,yakking,big mouth,gift of the gab,wittering,logorrhoea,multiloquence