To holla at a girl
or to try and get with a girl

to try to go with somebody

usually will get you smacked if the girl has a bf

In the African American community, a recent way of saying you wish to talk to someone in the context of (possibly) going out.

To approach a very beautiful female and try your hardest to get her number.

To see something that intrigues your eye and wanting it so bad that you rush to.