In reference to dating and relationships.It's and older man or woman who may be retired or not and is in a relationship with a younger man or woman who are usually twice or three times the age of the younger man or woman.
People hired and paid by an American governmental agency (can be city, state, or federal) to do a service that directly helps people. These people are given a pension, but are mean and angry with people who call on the phone or in person. They hate the job, but love the benefits including the pension. Examples can be found all over any state.
A considerably younger male or female that pesters, harasses and manipulates those of pensionable age for money, sex and use of their free bus pass/mobility badge