A lame and childish epithet, conceived by a former president of the United States, apparently intended to demean a "select committee" investigating his many crimes against America.
In the words of Donald J. Trump, July 19, 2022: "These Radical Left lunatics, from a failing show, were treated so differently than the Unselects are treating so many of our great American Patriots. NOT FAIR!"
Workplace usage: A long email string in which crucial details and instructions may be buried because the number of replies makes the email string unmanageable. Details hide between layers like ingredients in a Dagwood (Bumstead) sandwich. See also Microsoft Outlook.
I failed to act because I missed those details and instructions because they were buried in a Dagwood sandwich email.