When walking between party to party or bar to bar and you need to urinate and you can't afford to stop to and you urinate while you keep moving. Situations that call for a piss n walk are when you don't want to miss a ride and your friends won't wait for you, or you are in a crowded city and want to seem like you are just walking, while you actually are urinating. Advanced piss n walkers usually use a side step directionally urinating to one side as to not walk into their own piss.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.