Spur of the moment and Up and down

Up and down and spur of the moment are semantically related. In some cases you can use "Up and down" instead an adjective phrase "Spur of the moment".

Up and down adverb - Moving backward and forward along a given course.

Spur of the moment and up and down are semantically related. Sometimes you can use "Spur of the moment" instead an adjective phrase "Up and down".