crossed the Styx

Verb

cross the Styx (third-person singular simple present crosses the Styx, present participle crossing the Styx, simple past and past participle crossed the Styx)

1. (humorous, intransitive, literary) To die.
   • The following day Nigel apologized for what he described as an unhappy domestic interlude. “Marietta tells me that you are going to come over every day until . . . I cross the Styx.” I heard him chuckle. “Jolly nice of you, old boy.”2009, Peter Wright, Triumphs and Tragedies: Twenty-five Aspects of the Life of a Liverpool Sailor, Bloomington, IN: iUniverse, →ISBN, page 172

   Synonyms:

   assume room temperature, auger in, be called home, be gathered to one's fathers, be like the the One, be no more, be with Jesus, be with the Lord, bite the big one, bite the biscuit