retire/rehire
n.— «The practice of allowing state employees to retire, collect a pension or realize some other lump sum benefit and then be rehired for the same job is not working as intended. The practice is called retire/rehire and it’s commonly thought of as “double dipping.”» —“Double dipping should be ended” Rapid City Journal (South Dakota) Oct. 20, 2008. (source: Double-Tongued Dictionary)