Sleeping outside in the backcountry without an overhead shelter (such as a tent or tarp), usually done in the context of backpacking. The decision to cowboy camp is a calculated one - bugs, rain, snow, etc. are all possible backfires to the decision and can damper the experience.

Note that having an adequate shelter is a must, cowboy camping is the decision to forgo setting up a dedicated shelter and betting that conditions will be such that the shelter is not needed (but the dedicated shelter is still present/available should it be needed). Not bringing adequate shelter with you into the backcountry is foolish and can result in injury or death.

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

camping brokeback style! Extremely gay so don't tell anyone ur going cowboy camping, unless u did...