1.a term used to ask a person where they are.
2.a term used to ask a person how they are.
3.a term used to ask a person how far along they are,i.e.on a homework assignment.
4.simply a greeting.
1.julie,where you at!
2.hey beth - where you at?
3.where you at on the english paper?
4.where you at,mo?
A commonly asked question despite its incorrect use of english.