noun / verb
rumble
RUM-bul/ˈrʌmbl/
A low, deep, continuous sound or the act of making it.
The heavy roller rumbles past the window and vibrates the nearby glass.

Etymology
The word imitates a deep, rolling noise and is probably related to other northern European verbs for rumbling or roaring. Its sound-making sense is therefore more securely explained than its exact ancestry.
In context
crocodiles make like a Bellow don't they just could they kind of Rumble