accidentally on purpose
US /ˌæksɪˈdɛntəli ɒn ˈpɜrpəs/
UK /ˌæksɪˈdɛntəli ɒn ˈpɜrpəs/

1.
accidentalmente a propósito, a propósito pero pareciendo un accidente
doing something intentionally but making it seem like an accident
:
•
She accidentally on purpose spilled coffee on his new shirt.
Ella accidentalmente a propósito derramó café en su camisa nueva.
•
He left the door unlocked accidentally on purpose, hoping she would come in.
Dejó la puerta sin llave accidentalmente a propósito, esperando que ella entrara.