Enter a clue or pattern or both:
The Clue
Unlikely to rattle or squeak, say (5 letter answer)
The Answer
LUBED
Tags
Notes
The answer LUBED is so rare that it appears less than once every 2500 puzzles.
Related Clues
Like smooth-running engines
Definition
LUBE as a verb:
1. (lubricate, lube) = apply a lubricant to; "lubricate my car"