A nickname given to Donald "Jared" Dunn after another employee named "Jared" was supposedly being hired to Pied Piper.
The meaning was initially "Other Jared", as proposed by the gang, to distinguish between Donald "Jared" Dunn and the new employee. Donald "Jared" changed the meaning to "Original Jared" to make the meaning positive for him.
OJ was trapped on an island full of autonomous robots for four days; the way he returned was never mentioned.