German phrase
Ich habe mich doppelt verplant.
Meaning
I've double-booked myself
When to use it
It means your plans overlap. Often used when apologizing and rescheduling a work appointment.
Example dialogue
Ich habe mich doppelt verplant.
I've double-booked myself.
In Ordnung, wir verschieben den Termin auf nächste Woche.
Okay, let's move the appointment to next week.