when you go from the happy fun drunk, to a neurotic, stumbling, babblin, belligerent monkey. the bauducco snap usually occurs while drinking jagermeister. there's no forewarning, the snap is random, and arrives haphazardly.
Yo, have you seen Steve or Paul?" "One of them must have bauducco-snapped. Steve was just at the bar, started shouting, picked up a hula hoop, and bounced.