Neil Test

v. To hum at a certain frequency for a period of 0.3 seconds in order to test a sound sensitive electronic circuit.

May also include the infamous 'Helloooo~' to get a long sound wave to look at.

Often hilarious to watch.

My circuit got Neil Tested! He was saying 'Hellooo' for an entire minute before realizing the oscilloscope was disconnected! ROFL