on an E-Meter, a small or wide steady dance of the needle. Over a spread of one-eighth of an inch, (depending on sensitivity setting, it can be half an inch or a whole dial), the needle goes up and down perhaps five or ten times a second. It goes up, sticks, falls, sticks, goes up, sticks, etc., always the same distance, like a slow tuning fork. It is a constant distance and a constant speed, hooking at each end of the swing. A theta bop means "death," "leaving," "don't want to be here." See also E-Meter in this glossary.—PDC 2 Approved Glossary