Faunch

[Rihanna]

[Faunch]: verb, meaning to rage and storm, to fight against fate. [Faunching] at the bit implies waiting in nervous agitation and impatience, like a wild horse that is fighting against a harness. Probably derives from Irish fonn taodach - to quote Daniel Cassidys book, How the Irish Invented Slang (p.139) an impulsive frame of mind, jittery excitation, a fierce humor, taodach meaning excited, fidgety, quick-tempered. (Cassidys entry was not defining [faunch], but [fantod]. I made the leap myself.