To go out and get insanely drunk at your local bar/dive.
Guy 1: Where is your sister?

Guy 2: Oh, don't worry about her, she went hamstershacking last night and won't be resurfacing for a while...
by Mil.Friendly November 16, 2011
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Local bar and/or dive in which you spend countless hours getting incredibly drunk.
Man: Wow! You look like death today.

Woman: I know, I was at the Hamstershack last night...
by Mil.Friendly November 16, 2011
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