To speak or write in an angry, indignant, or wrathful manner. "Wroth" is an otherwise archaic term meaning "wrathful; angry or irate." Fans of the singer have been waxing wroth online about the announcement that her new album would be pulled from store shelves due to the recent controversy. You can wax wroth all you like, Tom, but it's not going to change the board's decision.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.