doesn't know sic 'em (from come here)

doesn't know sic 'em (from come here)

colloquial Said of someone who is utterly stupid or incompetent. Refers to a dog who can't understand its owner's commands. Primarily heard in US. Ah, don't you listen to her. She doesn't know sic 'em about computers. Ain't no way Tom could run his own business. Old fool doesn't know sic 'em from come here!
See also: come, know, sic
Farlex Dictionary of Idioms.
See also:
  • gotcha
  • not my dog
  • playa
  • do a job on someone From do a number on something.
  • ringer for someone
  • helluva someone/something
  • hit someone for something
  • playa hata
  • dogg.
  • fuggedaboutit