party fishing
n.— «In fact, they were nice enough not to cite a friend of mine who, while I was talking to troopers, freed a salmon from the end of my line, bonked it on the head, and used it to fill his three-fish limit for the day. That is what is commonly called “party fishing,” and it is clearly illegal in this state, where the fishing regulations could confuse Einstein.» —“State’s fine line on dipnetting blurry to all” by Craig Medred Anchorage Daily News (Alaska) Aug. 4, 2007. (source: Double-Tongued Dictionary)