病気のふり
Meanings
1
feigning illness; pretending to be sick
Almost always used in the pattern 病気のふりをする. Describes the act of pretending to be ill, often to avoid something.
See also: 振り (ふり)
He didn't want to go to school, so he pretended to be sick.
I don't want to attend the meeting, so maybe I'll pretend to be ill.