Being intoxicated by alcohol to such an extent that you pull an article of clothing (shirt or skirt, usually) over your head and pretend you're Batman. Term was coined in an episode of Two-And-A-Half Men.
by SpryOne May 18, 2005
The level of total drunkiness where a person does totally stupid things that they would not normally do (i.e. act like batman)
by Bogie182 August 6, 2008