5 ms·

As an counter datapoint, this is the first time I have ever heard of this.

• TazeTSchnitzel 12y ago
  Perhaps as "umph" or "umf"? No?
  • david-given 12y ago
    No, not even slightly. FWIW, I grew up in Scotland, then moved to England, so I'm probably from a rather different cultural background than the poster.
    • iagooar 12y ago
      As a non-native speaker, I have seen "umph" before.