A person who rolls off a brother or a girl for their own ultimate benefit. Some one who doesn't have your back and will cut you loose to avoid problems. Sex that is desired to be mutually beneficial but is meant to be ultimately gratifing for one person, even if the others person's needs are omitted.
"That girl is all out for her own."
by suburban cougar June 2, 2007
Get the out for her own mug.