Start in the dead-hang pull-up position. Instead of pulling straight up, pull to your left side, touching the top of your left pectoral to the bar. Descend under control, then do the same thing to the right.
You can also go side-to-side for two reps before descending: pull to the left, hold at the top, transition to the right, then lower yourself. Start the next rep by pulling to your right.
It seems that in every family there's always a black sheep, someone who just doesn't quite fit in with the rest. It might be your crazy Aunt Sally who's run off and joined a cult, or maybe your family has its own cousin Eddie of National Lampoon "Vacation" fame.
The true Master Blaster discusses planks, high reps for legs, determining your 1-RM without killing yourself, backward rep counting, bad-ass Beta Alanine, building big arms, losing your pump, and the glories of buffalo meat.