The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.
boll weevil
NOUN:
1. A small, grayish, long-snouted beetle (Anthonomus grandis) of Mexico and the southern United States, having adults that puncture cotton buds and larvae that hatch in and damage cotton bolls. 2.Informal A conservative white Southern Democrat in the U.S. House of Representatives.