Holla

[Tina]

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

[Donald Trump]

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

[Sonia]

interj. 1. an exclamation of greeting. 2. an exclamtion used to show excitement or enthusiasm. verb. 1. to call. 2. to summon

[Mark Zuckerberg]

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

[PussyCat]

1. Casual greeting (can be loud)

2. To call someone

3. Form of assent.

(See corresponding examples)

[Britney]

Synonym to every verb in any language known to man.

[PussyCat]

trying to talk to someone or just saying goodbye

[Britney]

to make ones presence known
also can be used as a prefix in describing members of the opposite gender

[Tanya Shivari]

being changed from its old definition and is starting to be used as a statement to agree with something. Not to be confused with holler.

[Little_Girl]

A greeting that seems recent, but was used as far back as Shakespeares time.