pop
n.β Β«Mike Rehmus, editor of Model Engine Builder, a magazine published five times a year in Vallejo, Calif., said that the builders of miniature internal-combustion engines seemed to have in common a βsatisfaction of making something mechanical run that started out as a pile of raw metal.β βThe first time it runs is pretty excitingβwe call it the first pop,β he said. βThis is pretty good therapy for a lot of people.βΒ» ββSaying βSmall Block’ and Really Meaning It” by Jim Norman New York Times June 24, 2007. (source: Double-Tongued Dictionary)