Listen to your iPod on shuffle, you force yourself to listen to songs you don't feel like hearing.

having a wank, rubbing one out, masturbating

This is when someone grabs ahold of a penis with two hands and begins twisting in opposite directions.

Hearing two extremely different generas of music back to back, most commonly in a randomized playlist

When one is attached to the act of dancing the Shuffle, thinks about Shuffling, Shuffles all the time until they act like a Zombie unless the be Shufflin', and is addicted to the song "Party Rock" by "LMFAO"

When a man places his penis on the outside of his pants and walks briskly past people rubbing his penis against them without their knowledge.