godan verb (-mu), intransitive verb
sink into; cave in; get stuck in
Describes something pressing into a surface and becoming embedded, or a surface collapsing inward. Often used for objects sinking into soft ground, mud, or snow, or for dents in metal.
車がぬかるみにめり込んで動けなくなった。
The car got stuck in the mud and couldn't move.
ボールが壁にめり
The ball lodged itself in the wall.