1. An extra push. An ingredient or a factor that will make something better or perfect. 2. ability to jump or move in great heights.
3. a sound of such a sound (jumping or pushing), or sound of landing of such a act of jumping or pushing.
1. If you want this hot dog to have an extra oomph, add some Tobasco 2. I can't make this slam dunk--I just don't have the oomph.
3. He fell on the pavement with a loud oomph.
A fantastic german industrial rock band. Their unique sound was later praised (and emulated) by the german industrial rock band Rammstein.
The lead singer of Oomph!, Dero Goi, is overwhelmingly more talented than that of any other german rock band's vocalist, at least so far as I have heard.