push in

US /pʊʃ ɪn/
UK /pʊʃ ɪn/
"push in" picture
1.

to rudely join a queue or line of people by forcing your way into it

:
Don't try to push in, wait for your turn.
He was rude and tried to push in at the counter.
2.

to press or force something inwards

:
You need to push in the button to activate it.
The old door was difficult to push in.