A mixture of being a slave and a master to another of the same kind. Usually being each other's slave and master
My slaster and I whipped each other while working
by DeltaVirusX October 25, 2013
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Getting really drunk, while at the same time trying to obtain a copious amount of horse manure. It almost always involves a couple of hispanic workers that are used as sidekicks. Usually takes place in rural areas of the united states south of the Mason Dixon line.
dude; i was slastered last night.

Other dude; sick dude did you get some of that manure?
by thekrunkpimphoodkillah October 24, 2013
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