boll weevil

noun

1. a snout beetle, Anthonomus grandis, that attacks the bolls of cotton.
2. Informal. (especially in the U.S. Congress) a Southern Democrat with conservative views who often votes with the Republicans as part of a Southern or conservative power bloc.

noun

1. a greyish weevil, Anthonomus grandis, of the southern US and Mexico, whose larvae live in and destroy cotton bollsSee also weevil (def. 1)