oompah

 
Pronunciation: /ˈuːmpɑː/
(also oompah-pah)
informal

noun

[mass noun]
  • the rhythmical sound of deep-toned brass instruments in a band: [as modifier]: beer gardens from which oompah music thumped resoundingly

verb (oompahs, oompahing, oompahed)

[no object]
  • make an ‘oompah’: the military band oompahed from the terrace

Origin:

late 19th century: imitative