get up to
US /ɡet ʌp tuː/
UK /ɡet ʌp tuː/
1.
企む, する
to be busy with something, especially something that other people might not approve of
:
•
What have you been getting up to?
何を企んでいたの？
•
The children are always getting up to mischief.
子供たちはいつもいたずらをしている。