When your in a relationship but keep breaking up over small things, saying it's over forever but then getting back together hours/days later. Only to repeat the process again within the next 7 days.
Guy1: "Hey man I just broke up with my girlfriend. It's for good this time I don't wanna see that bitch again."
Guy2: "Again!? That's the 4th time this month, your totally in a Jackary Relationship man".