Hummeroo

A screecheroo that is flattened. I don't know what it does, but I'm under the impression that it hums rather than screeches.

My friend makes hummeroos every Halloween.

by wcgold May 24, 2005

hummeroo

The slight moaning sound a man makes while receiving a hummer.

There's no more musical sound than that of a hummer accompanied by a hummeroo.

by calmling January 11, 2008