noun
bottom fishing; legering
A fishing technique where the bait is cast out and allowed to sink to the bottom, often using a weight to keep it there. The term is specific to fishing contexts.
ぶっこみ釣りで大物を狙う。
I aim for big catches with bottom fishing.
ぶっこみ釣りは、仕掛けを底に沈めて魚を待つ釣り方だ。
Bottom fishing is a method where you sink the rig to the bottom and wait for fish.
From ぶっこみ (emphatic or forceful throwing in, from ぶっ込む) + 釣り (fishing). The exact derivation of ぶっこみ is uncertain, but it likely relates to the action of casting the bait forcefully into the water.