get up to
US /ɡet ʌp tuː/
UK /ɡet ʌp tuː/

1.
하고 있다, 저지르다
to be busy with something, especially something that other people might not approve of
:
•
What have you been getting up to?
뭘 하고 있었어?
•
The children are always getting up to mischief.
아이들은 항상 장난을 치고 있어.