What is Hollar?
1.
1)to shout back at your dawg
2)to show excitement
give me a hollar sometime.
2.
(also spelled holler in some areas, especially Kentucky) A very old Southern USA term meaning "down the road a spell" or, more accurately, "down in the valley a ways." Used a couple of hundred years before anyone had ever heard of Gangsta or "white, pasty people misusing Gangsta words."
Step out on the porch and give a yell down the hollar to your brother.
See
3.
1. Middle-america's try-to-be-urban cool version of "holla," an endearing solicitation for verbal replies as popularized by the Rocafella clique.
2. Cool urban youth's making fun of the played out "holla" that Middle America has adopted with their unknowing mispronunciation of the slang that was cool approximately 1 1/2 years ago
"Yo Jeb! Stop at the General Store and cop me a Phillie and a 40 ounce bottle of Old E and meet me on the dirt road near our old fishin hole! Hollar!"