To speak indistinctly so that the sounds run into one another. After a few drinks, he began to slur his words.
To pass over (a fact or detail) so as to conceal or minimize its significance. The report slurred over the most important findings.
To perform a group of musical notes smoothly in one continuous motion. The musician slurred the notes to create a flowing melody.
To make insulting or disparaging remarks about (someone or something). The article slurred the scientist's integrity without providing evidence.