sluff off

sluff off

1. Literally, to shed, peel, or scrape off an outer layer of something. In this usage, a noun or pronoun can be used between "sluff" and "off." A less common variant of "slough off." It can be pretty gross to watch a snake sluff off its skin, leaving behind a weird, hollow version of itself.
2. To dismiss, ignore, or minimize the importance of someone or something. In this usage, a noun or pronoun can be used between "sluff" and "off." A less common variant of "slough off." He kept heckling me during the show, but I sluffed him off and kept performing. The senator just sluffed off the journalist's comments, describing them later as "baseless" and "incendiary."
3. To procrastinate or avoid doing work. In this usage, the phrase is sometimes followed by a noun indicating the thing being avoided. A less common variant of "slough off." If you keep sluffing off, we'll be forced to give you a formal warning. I decided to sluff off my essay for the weekend and hang out with my friends instead.
See also: off, sluff
Farlex Dictionary of Idioms.

sluff (off)

and slough (off)
in. to waste time; to goof off. Watch him. He will sluff off if you don’t keep after him.
See also: off, sluff
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • blow off
  • blow someone/something off
  • base off (of) (something else)
  • check off
  • bite off
  • blow off the map
  • brass off
  • brass someone off
  • brassed off
  • call off
References in periodicals archive
There is an element of goodness that he can never sluff off. Discover the element of good in your enemy.
Over millennia, mud from the Missouri River, Ohio River silt, and the sluff off the Ozark Mountains tumbled down the continent and, at the great river's mouth, spilled and spread into an intricate coastline of inlets, estuaries, and bays.