The point of inebriation where one becomes possessed of legendary eloquence.
May or may not involve lecturing people endlessly on things that they probably do not want to hear.
Alice reached the magic level of Shakespearean drunk and was able to sing "The Elements" by Tom Lehrer

Ryan got Shakespearean drunk at the Halloween party and lectured me for twenty minutes about how my William Wallace costume contained multiple anachronisms.
by Kaiser Kittu October 31, 2010
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