Catching fish by lighting a stick of dynamite and throwing it as far as you can into a lake or river, and then netting all the fish stunned by the explosion. Considered by most anglers to be excessive, it can be time saving if you have a large fish fry to prepare for. It can also lead to late-night visits from the BATFE and/or the Department of Homeland Security.
Named for the DuPont Company, who have been manufacturing explosives in the United States since the early 19th Century.
"Hey, how're we going to get enough fish for tomorrow night?"
"Grab the DuPont fishing lures and meet me at the lake; I'll show you."