Start with 10 presses and 20 front squats. On the next set, do as many presses as you can, then double that number for front squats. Continue until jacked.
Alternate between chin-ups and push-ups, doing twice as many push-ups. Example: Start with 10 chins and 20 push-ups. Goal: 30 chins, 60 push-ups total.
Add this mechanical drop-set to the end of your upper-body workouts: reverse flyes, external rotations, face pulls. Do 6-10 reps each, no rest between, in that order.