A "retired" individual who already collects a fat pension but refuses to quit working at a good job, thus (unintentionally) robbing a young adult of a decent job opportunity. In order to meet the criteria of a job-hoard, an individual must own a home fully, be experiencing no financial pressures and have a combined pension income that equals or exceeds what a young adult would earn working 80 hours per week at a job that pays at or near minimum wage.
Retirees who truly need the money are not the target of this definition.
Younger people have already inherited a shattered economy, impossible real estate prices, and an overall inability to provide genuine opportunities for their future families. Compounding this are financially-secure folks who have a perceived need for more money.
The above definition is not meant to be ageist, as there are many younger "retirees" hoarding jobs too.
job-hoarder - " I worked for the government for 30 years, I get a nice pension and this job gives me something to do so I don't get bored, did I mention I've got a house for sale "
young person - " I wish I could find something full-time, my wife and I want to have kids someday but we can't afford it, and forget a pension, that'll NEVER happen"
job-hoard - " Don't worry there young feller, I'm sure you'll find somethin "