Participating, individually or with a group, in the more active aspects of urban nightlife. Term encompasses both dancing and non-dancing participation, sexualized and non-sexualized, and usually refers to large, perception- or mood-altering venues. Suggests, but does not imply, the use of drugs or alcohol. Can be applied, though only loosely, to clubs in the suburbs.
I was macking on some random hottie and wishing they'd play anything Calderone; Jay was grinding to strobes in the main hall; Bess was reapplying the body glitter she'd rubbed off on everyone else, and Biff was gamely slamming Grey Goose with the DJ. It was another night clubbing.