A trap for catching rats; also, something resembling or suggesting such a trap.(noun)
A rat-trap pedal.(noun)
The Century Dictionary (Public Domain)
Use "rat-trap" in a sentence
"Now to someone unfamiliar with the spatially-challenged nature of New York City geography, the comparison of a couple of blocks and a couple of miles might seem like just a bit too much but remember this: two blocks is all it takes to turn a Williamsburg loft into an East Williamsburg rat-trap."
"Secrets intact I skip out the door into my rat-trap conveyance and with lights blinking red all around me roar off."
"The foremost was naked to the waist, with braided hair hanging to his belt, and what looked like a tail of coonskin round his brows; the face beneath it was a nightmare of hooked nose and rat-trap mouth crossed by stripes of yellow paint."