1: a braided cord worn by Boy Scouts as a neckerchief slide, hatband, or ornament
2: a wasteful or impractical project or activity often involving graft
— boondoggle \ intransitive verb
— boondoggler \ noun
Examples
Critics say the dam is a complete boondoggle—over budget, behind schedule, and unnecessary.
Origin
coined by Robert H. Link †1957 American scoutmaster
First Known Use: 1929