step out of line
US /stɛp aʊt əv laɪn/
UK /stɛp aʊt əv laɪn/

1.
melanggar aturan, bertingkah buruk
to behave badly or break the rules
:
•
If you step out of line, you'll be punished.
Jika kamu melanggar aturan, kamu akan dihukum.
•
The teacher warned the students not to step out of line during the field trip.
Guru memperingatkan siswa untuk tidak melanggar aturan selama karyawisata.