A function you pass to another function which runs the function you passed to the function you are calling, often this function that calls the function you passed to the function supplies your function with parameters created from results of calculations within the function you passed your function to.
A phrase only used by the mothers of teenagers. This phrase is often found in the voice mail box of children who haven't checked in with their parners in several hours.
mother: Jason? It's Mom. I called Michaels mother and she said you left two left hour ago? Call back asap!
when you call someone and they dont answer then they call u and u accidently dont answer then you call them but there on the other line calling u and so on.
in the fashion industry the term "call back" means a model has booked a job or they atleast want a second look at you for what ever reason
a call back is when the mindless sheep, excuse me, models shuffle into a casting one after the other in a sea of nameless faces. casting agents than selectively choose a handfull of the worthy enough from the sea of anoriexic hopefuls.