Definition of "Slur" :
noun: a blemish made by dirt
noun: a disparaging remark
"It is difficult for a woman to understand a man's sensitivity to any slur on his virility."
noun: (music) a curved line spanning notes that are to be played legato
verb: become vague or indistinct
verb: utter indistinctly
verb: speak disparagingly of; e.g., make a racial slur
"Your comments are slurring your co-workers."
verb: play smoothly or legato
"The pianist slurred the most beautiful passage in the sonata."