noun; the part of a person that is lost (aka. misplaced temporarily, occasionally referred to as 'dropped') when situations or circumstances cause one to question the integrity of their character, more often than not at a moment of extreme weakness, generally followed shortly thereafter by feelings of deep regret. Can also be utilized as independent nouns and pluralized.
"omg, i totally slept with that beat, fugly guy last night. Moral jaw? GONE."
"I drank the bar dry last night, was faced out of my mind and drove home. Has anyone seen my morals? JAW?! Has ANYONE seen my jaw?"