The act of going out to the club with the intent to aggressively pursue the opposite sex by demonstrating an inordinate amount of charisma and swag.
Girl 1: Girl look at that! He is FLY!! he is MINE!!
Girl 2: Go ahead girl, go swag fishing and reel him in!
Guy1: Yo c'mon lets go out to the club and get it in.
Guy2: Yeah, its about time I go swag fishing and get a new one.
Girl: His swag juice is drippin tonight, you better be careful before you end up swag fished.