mousetrap
Americannoun
-
a trap for mice, especially one consisting of a rectangular wooden base on which a metal spring is mounted.
-
a device, machine, or the like whose structure or function suggests a trap for mice.
-
a device, system, or stratagem for detecting and catching someone in an unauthorized or illegal act.
-
Football. trap.
verb (used with object)
-
Informal.
-
to trap or snare.
traffic cops mousetrapping drunken drivers.
-
to manipulate by devious or clever means; trick or outwit.
to mousetrap the witness into a contradiction.
-
-
Football. trap.
idioms
noun
-
any trap for catching mice, esp one with a spring-loaded metal bar that is released by the taking of the bait
-
informal cheese of indifferent quality
Etymology
Origin of mousetrap
First recorded in 1400–50, mousetrap is from late Middle English mous trappe. See mouse, trap 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“They say they’re building a better mousetrap to handle more business without laying on additional cost, but you can’t really test that until the business comes,” Seidl said.
From The Wall Street Journal • Sep. 30, 2025
They were flawed individuals, but they had a crucial insight into how to build a better mousetrap.
From Salon • Jul. 6, 2023
"Wagner troops climbed into Bakhmut like rats into a mousetrap," Oleksander Syrskyi, commander of Ukraine's ground forces, told troops at the Bakhmut front this week.
From Reuters • May 20, 2023
He had supposedly built a better mousetrap, and the world had indeed beaten a path to his door.
From Washington Post • Dec. 16, 2022
Tie one end of the string to the trappy part of the mousetrap.
From "As Brave As You" by Jason Reynolds
![]()
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.