guǐ

ㄍㄨㄟˇ

NHSK 5TOCFL L3core 10k

1disembodied spirit; ghost; devil

2(suffix) person with a certain vice or addiction etc

3sly; crafty; resourceful (variant of 詭|诡[gui3])

4one of the 28 constellations of ancient Chinese astronomy

jiàn见guǐ鬼liǎo了。

见鬼了。

That's weird.