A person who signs a round robin; specifically one of fifteen United States senators who signed a document stating they would not vote to impeach Governor Huey Long of Louisiana in 1929.
Origin
1930s.
Definition of round robineer in US English:
round robineer
noun
A person who signs a round robin; specifically one of fifteen United States senators who signed a document stating they would not vote to impeach Governor Huey Long of Louisiana in 1929.