1. sad and gloomy; dejected; downcast.
(Case of the jbs usually results in individual having no sexual drive or sex life what so ever leading to anger)
Girl: So I was like totally thinking of Justin Beiber and had like an orgasm so, can you help me clean it up? It was a messy one.
Prosecutor: Ladies and gentlemen of the jury, as my witness has clearly expressed, with audio playback as proof, the defendant CLEARLY said, and I quote, "I will fucking kill you!"
Defense: Objection! Your honor, my defendant was Just Being Silly!
Judge: Order in my courtroom!
Synonym - Just Bull Shitting, not to be confused with Just Being Silly*