walk in on
US /wɑːk ɪn ɑːn/
UK /wɑːk ɪn ɑːn/

1.
entrar y ver, pillar in fraganti
to enter a room and see someone doing something private or embarrassing
:
•
I accidentally walked in on them while they were changing.
Accidentalmente entré y los vi mientras se cambiaban.
•
She didn't want anyone to walk in on her while she was practicing her dance moves.
Ella no quería que nadie entrara y la viera mientras practicaba sus movimientos de baile.