noun. A common vulgar form of hollo.

noun. In South Midland and Southern (dialects of American English), a hollow.

noun. A rural road in the Appalachians in the U.S.A.

noun. A yell, shout.

noun. By extension, any communication to get somebody's attention.

verb. To yell or shout.

verb. To call out one or more words

verb. To complain, gripe

noun. a very loud utterance (like the sound of an animal)

verb. complain

verb. shout out

verb. utter a sudden loud cry

noun. a small valley between mountains

"But apparently a "holler" is just a "hollow" – a valley between mountains – in West Virginia."