Engaging in an elite echelon of douchebaggery most commonly practiced in the United States, primarily anywhere within the state limits of New Jersey, and directly influenced by the distinguished music stylings of party noisemakers LMFAO. This level of "Shufflin'" can only be achieved while toxically drunk and you must be predisposed to daily douchbaggery and/or fist pumping.
The phrase famously used in LMFAO's Party Rock Anthem. On hearing the phrase, it may cause some people to do a stupid dance called "The Shuffle" which this song brought to light.