holler 1
/hol"euhr/ , v.i.
1. to cry aloud; shout; yell: Quit hollering into the phone.
v.t.
2. to shout or yell (something): He hollered insults back into the saloon.
n.
3. a loud cry used to express pain or surprise, to attract attention, to call for help, etc.
[ 1690-1700, Amer.; var. of holla (see HALLO) ]
holler 2
/hol"euhr/ , n. South Midland and Southern U.S.
a hollow.
[ 1835-45, Amer. ]