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 4, 2005
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
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
A greeting that seems recent, but was used as far back as Shakespeare's time.
Francisco: Bernardo has my place. Give you good night.
Marcellus: Holla! Bernardo!
by Digicam. December 15, 2007
Synonym to every verb in any language known to man.
by Bopb July 11, 2008
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 26, 2003
to make ones presence known
also can be used as a prefix in describing members of the opposite gender
1-Holla, joe

2-HOLLApeno(hot guy/girl)
3-HOLLAween(ugly guy/girl)
4-HOLLAluya(catholic school girl)
by pokpok May 6, 2003