The crossword solution for the term 'STICK WITH A SPRING' is POGO, which is an acronym for 'Pole Of Gravitational Oscillation'. This term was coined by inventor and engineer George Hansburg in 1919 to describe a type of spring-loaded pole that could be used to propel a person into the air. The pogo stick has since become a popular toy and recreational activity, with many variations and designs available.