According to Wiki it is...
An entitlement is a guarantee of access to benefits based on established rights or by legislation. A "right" is itself an entitlement associated with a moral or social principle, such that an "entitlement" is a provision made in accordance with legal framework of a society. Typically, entitlements are laws based on concepts of principle ("rights") which are themselves based in concepts of social equality or enfranchisement.
In a casual sense, the term "entitlement" refers to a notion or belief that one (or oneself) is deserving of some particular reward or benefit
http://en.wikipedia.org/wiki/EntitlementAre the repubs using the term in a legal sense in that entitlements are an established right or by legislation?
Or are they using it in a casual sense which means that people who are on social security, medicare and medicaid are nothing but lazy slobs who are sucking the country dry?
They way the repukes tell it anyone who participates in these social programs are the dregs of society.