A fishing method where a baited line or lure is drawn through the water behind a moving boat.
See also: トローリング
We went trolling offshore for bonito.
drift fishing
A fishing method where the bait is allowed to drift naturally with the current, often from a stationary or slowly drifting boat.
I caught sweetfish by drift fishing in the river.
Compound of 流し (nagashi, 'flowing, letting flow') + 釣り (tsuri, 'fishing'). The term describes fishing methods where the line or bait is allowed to flow or drift.