Also applicable to weenies who demand free throws after the slightest contact in a pick-up basketball game and d-bags who take yardage penalties in backyard football games.
Son: Don't pressure me, I'm trying to work the count.
Pops: Don't play lawyer ball, son.
Person: Umm, ok, Steve announced the iPhone. You'll buy me one when it comes out in June, right?
Lawyer: No, in fact, I said if the iPhone COMES OUT at macworld i'd buy you one, which it didn't, so therefore I am in no way obligated to purchase said phone for you.
Person: Come on, quit playing Lawyer Ball