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1.
1. A word used to acknowledge the presence of a fellow companion
2. For a man to express interest in a particularly impressive female specimen
3. To contact via telephone
1. Is that mah boy ova there? HOLLAAAAA!
2. Watch out, I'm bout to holla at this fine bitch.
3. Boy, it was absolutely magnificent to see you again. Holla at me this evening, we can have tea and crumpets.
by Wise One January 04, 2005
 
2.
it depends upon the context in which you are using the word.
1.)a term used to try and talk or try an "hook-up" with a female.
2.)meaning to talk to someone or telling somebody to hit u up later
Ex. for #1.) Ey mama can i HOLLA atchu fa a minute.

Ex. for #2.)a> HOLLA atcho boy b.>holla bak
by mOmO69 February 19, 2003
 
3.
interj. 1. an exclamation of greeting. 2. an exclamtion used to show excitement or enthusiasm. verb. 1. to call. 2. to summon
interj. Holl-a! (greeting)
interj. Look at those ladies...Holl-a!
verb. I'll holla atch'ya in a hot minute.
by DG December 23, 2003
 
4.
1. A way for a brotha to say he wants to get in your pants
2. A pimp ass way of saying 'what up'
3. May be used to end a conversation
1. 'Ay, my boy right here wanna holla at cha'
2. 'Holla, what you be doin'
3. 'I gotta go, buh holla back.'
by Stephanie 'youngin' April 25, 2003
 
5.
1. Casual greeting (can be loud)

2. To call someone

3. Form of assent.

(See corresponding examples)
AS: Holla at you, girl!
CW: Holla back!

AS: Holla at me tonight if you want to go out.
CW: Word.

AS: ...and that's why the French don't wash!
CW: Holla!
by CU AS September 14, 2006
 
6.
trying to talk to someone or just saying goodbye
1.holla at ya boy
2holla at me later
by trouble April 18, 2003
 
7.
1. To show a romantic interest in an individual esp. with exchanging of one's personal information. Flirt.
2. An expression of joy or jubilation.
3. An affirmation to a question requiring "yes" or "no", usually in a positive context.
1. Can I holla at a girl?
2. Holla! I won the game!
3. Are you going to the club tonight? Holla!
by Me April 06, 2005