1) To turn an otherwise routine activity into a complete and utter debacle;2) to destroy or lose an expensive item, often in an extremely hilarious manner; 3) to graciously put ones self in a precarious situation for the sake of his friends' amusement.
1) Wow, you really Jarrett'd that boom box.
2) Man, that blackberry is so old you might as well Jarrett it.
3) What do you mean it was hand sanitizer?! Can't we just do this without Jarretting it all up.