A wikipedia type thread in the forum might be an easy way to start. Here is a sample:
BLIP THE THROTTLE: A quick flick of the throttle to momentarily bring up the RPM of the engine with the clutch dis-engaged. Useful in these circumstances: 1- Older style bikes with point ignition and older style carburetors do not idle well. A quick blip will help to avoid a stall. 2- When down shifting will help match RPM to the new gear ratio, thus minimizing drive train stress as well as making the down shift smoother.