godan verb (-mu), intransitive verb
sit down heavily; plop down; plant oneself down
Describes the action of entering a place and sitting down, often with a sense of settling in or sitting heavily. The 込む ending adds a nuance of doing so firmly or for a while.
疲れたので、公園のベンチに座り込んだ。
I was tired, so I plopped down on a park bench.
彼は部屋に入るなり、どっかり
He came into the room and planted himself down heavily.
godan verb (-mu), intransitive verb
sit down and refuse to move; stage a sit-in
Used when someone sits down as a form of protest or stubborn refusal to leave. Often implies a deliberate, prolonged action.
抗議者たちは会社の前の道路に座り込んだ。
The protesters sat down on the road in front of the company.
子供がおもちゃ売り場で座り込んで動かなかった。
The child sat down in the toy section and refused to move.