tāo​kōng

to exhaust

掏空 tāo//kōng
to exhaust verb
To use up all available resources, such as savings, funds, or mental energy.
to hollow out
To dig out the contents of an object and make it hollow; to empty out completely.
to tunnel
(finance) To illegally divert or drain assets from a company for private gain; to strip assets.

Frequency

Movie subtitles
1.22 per million appears in 1% of films
Written text
1.59 per million

Sources