Jehn
Euphanism for the supremacy of a John boat. "Jehn" is utterly unacceptable for people of non Jon boat descent to use. However one is able to achieve the "Jehn card" through permission from someone possessing a rover jon. Permission is often granted out of respect. Ex. putting extensive labor into their watercraft, being racist, or having unmatched stance.
Luke: "I am heading out to Lavon this weekend"
Jinder: "Are you going out in the jehn"
Luke: *Proceeds to beat jinders ass for improper use of "Jehn"*
Jinder: "Are you going out in the jehn"
Luke: *Proceeds to beat jinders ass for improper use of "Jehn"*