going underground

Verb

go underground (third-person singular simple present goes underground, present participle going underground, simple past went underground, past participle gone underground)

1. (Canada, US, especially, intransitive) To escape into a burrow, hole, etc. when being hunted.
2. (Canada, US, broadly, figuratively) To withdraw from public view or to seclude oneself, particularly to avoid detection or scrutiny by the authorities, members of the media, or other interested parties.