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An Alaskan Supercluster is the act of taking a bag of frozen peas and shoving it up your anus. Typically done with little to no lubricant.
John: Did you hear, Brett got Monica to do the Alaskan supercluster on him!

Trevor: No way! Im super jealous. I wish I had a bad of peas in my ass.
by Flambolticus November 05, 2013
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