Wiktionary
on the spur of the moment
prep.phr. (context idiomatic English) On very short notice; spontaneously.
WordNet
on the spur of the moment
adv. on impulse; without premeditation; "he decided to go to Chicago on the spur of the moment"; "he made up his mind suddenly" [syn: suddenly]
Wikipedia
On the Spur of the Moment
On the Spur of the Moment is the fifth album by American jazz pianist Horace Parlan featuring performances recorded and released on the Blue Note label in 1961.
On the Spur of the Moment (album)
On the Spur of the Moment is a 2011 release by Brainstorm. It is the band's ninth studio full-length release.
Usage examples of "on the spur of the moment".
Three times he decided on the spur of the moment to follow a woman coming out of the house, two wearing the red belt of a Wise Woman.