Let sleeping dogs lie

What is Let sleeping dogs lie?

Let sleeping dogs lie definition and meaning on Dictionary terms:
a domesticated canid, Canis familiaris, bred in many varieties.
any carnivore of the dog family Canidae, having prominent canine teeth and, in the wild state, a long and slender muzzle, a deep-chested muscular body, a bushy tail, and large, erect ears.Compare canid.
the male of such an animal.
any of various animals resembling a dog.

a despicable man or youth.
Informal. a fellow in general: a lucky dog.
dogs, Slang. feet.
Slang. something worthless or of extremely poor quality: That used car you bought is a dog.an utter failure; flop: Critics say his new play is a dog.

Slang. an ugly, boring, or crude person.
Slang. hot dog.
(initial capital letter) Astronomy. either of two constellations, Canis Major or Canis Minor.
Machinery. any of various mechanical devices, as for gripping or holding something.a projection on a moving part for moving steadily or for tripping another part with which it engages.

Also called gripper, nipper. Metalworking. a device on a drawbench for drawing the work through the die.
a cramp binding together two timbers.
an iron bar driven into a stone or timber to provide a means of lifting it.
an andiron; firedog.
Meteorology. a sundog or fogdog.
a word formerly used in communications to represent the letter D.

verb (used with object), dogged, dog