The definition of a cur is a mixed breed dog, or a dog or person who is not well liked.
(noun)See cur in Webster's New World College Dictionary
noun
Origin: ME curre, earlier kurdogge, prob. < ON or MLowG, as in Swed dial. kurre, MLowG korre, dog: basic sense “snarling, growling” < ON kurra or MLowG korren, to growl
See cur in American Heritage Dictionary 4
cur
nounOrigin: Middle English curre, perhaps of Scandinavian origin; see gerə-2 in Indo-European roots.
Learn more about cur