Babbling, longwinded talk; inane and lengthy chatter. Primarily heard in US. I get so nervous when I go out on dates that I always start getting verbal diarrhea and sounding like a fool.
Fig. constant talking; a "disorder" involving constant talking. Wow, does he ever have diarrhea of the mouth!You're getting diarrhea of the jawbone again.
n. an imaginary disease involving constant talking. Wow, does he ever have diarrhea of the mouth! Sorry. I seem to get diarrhea of the jawbone whenever I get in front of an audience.