expression, godan verb (-su)
push through unreasonably; have one's own way against all reason
Idiomatic expression for forcing an unreasonable or selfish demand despite opposition. Often used when someone ignores logic or fairness.
彼は会議で横車を押して、自分の案を通した。
He pushed through his own idea unreasonably at the meeting.
そんなに横
Even if you force your way like that, nobody will be convinced.