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1.
V. Acting or behaving outwardly ghetto in a high class establishment. 2) Intentionally reducing the quality of a conversation or experience. 3) Allowing your backside to show by intentionally forgetting to wear undergarments with baggy jeans when sagging.
Etymology: The word is derived from the infamous Sistrunk Boulevard in Fort Lauderdale, Florida. The lower income neighborhood is slated for "redevelopment" because unlike Lauderhill, it clashes with the newly built condominiums in the nearby arts district.
"You never catch the Obama girls sistrunking on national TV."

or
"When the Country Club manager told me my card was declined, I just started straight-up sistrunking..."
by FLSqueezed November 14, 2012