ailai au païs de claiquedant

Etymology
Literally, "to go to the country of 'Snaptooth'". Origin of phrase and apparent creature "Snaptooth" unknown; probably from local folklore of a demon, bugaboo or cryptid linked to Hell, now lost to history. However, compare cognate 🇨🇬; this then may refer to Hell being seen as dark and cold (the "outer darkness"), hence the first sense. Secondary sense of "to ingest medicine for a winter disease" is even further nebulous.

Verb

 * 1) to go to hell literal or insult
 * 2) to ingest some medicine for any winter disease