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Where one goes clubbing the night before and the next morning, in fear of the hangover to come, begins to drink once more. The consumption of alcoholic beverages then continues throughout the entire today, until one is absolutely intoxicated.
For example: Shit, i think im still drunk from Smack. Apocalash? Yeh Brah. Apocalashhhhhhhhhh!
by fb19919239393 March 17, 2012
Going out on the lash and getting drunk to apocalyptic proportions.
We not just getting pissed tonight, we're going on the apocalash!
by s2000-uk August 05, 2007