From The Arabic Djuba, Jacket. Jupe Had Two Meanings From The Middle Ages On Towards The Mid 17th Century, Jacket And Skirt. Only In 1672 Did The Dictionnaire De L'académie Francaise Define The Term Jupe, "part Of Women's Costume, From The Waist To The Feet." The Term Had Disappeared By Then From Men's Costume, Except For The Panels Of Certain Garments. From The 1670s On Jupe/skirt Corresponds With The Modern Meaning. In The 17th Century Women Wore 3 Jupes One On Top Of The Other The Modeste, A Top Skirt Which Often Trailed; The Friponne In The Middle, Which Covered The Secrète, The Underskirt. The Latter Two Reached The Ground.
In Internet Relay Chat (IRC), juping a server, a channel, or a nickname refers to the practice of blocking said channel or nickname on the server or network. This is named after the user Jupiter on EFnet, who did it to Nick Serv.