hals über kopf , kurz entschlossen , spontan

listen to the pronunciation of hals über kopf , kurz entschlossen , spontan
Английский Язык - Турецкий язык
Немецкий Язык - Английский Язык
on the spur of the moment
On very short notice; spontaneously

They keep their bags packed so they can leave on the spur of the moment.

impulsively, without advance planning
on impulse; without premeditation; "he decided to go to Chicago on the spur of the moment"; "he made up his mind suddenly