oshikomu
1.

To forcibly enter a space or location, often in a manner that disregards barriers or boundaries.

2.

To impose oneself into someone else's premises without invitation, typically with an element of intrusion.

3.

To tightly pack or fill a confined area, ensuring there is minimal space left unoccupied.

4.

To cause an object or substance to be inserted into a container or opening with pressure, often resulting in a snug fit.

Example:

ピストルを持った男が彼をせきたてて車に押し込んだ。