do a disappearing act
US /duː ə dɪs.əˈpɪr.ɪŋ ækt/
UK /duː ə dɪs.əˈpɪr.ɪŋ ækt/

1.
玩失蹤, 突然消失
to leave a place or disappear suddenly and without explanation
:
•
He did a disappearing act right before it was his turn to pay.
他玩起了失蹤,就在輪到他付錢之前。
•
The cat did a disappearing act and we couldn't find her for hours.
那隻貓玩起了失蹤,我們找了幾個小時都沒找到。