oompah

verb

verb

To produce an oom-pah sound.

...the house filled with the sounds of Mario Lanza, or oompahing tubas […]2005, Jeannette Walls, The glass castle:
Beer foamed; champagne bottles stood at attention in silver buckets; military brass oompahed over the hill and the summer air grew heavy with jubilation […]1995, Simon Schama, Landscape and memory:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.