# monkey wrench

> English word · Noun

## Definitions
1. A wrench (spanner) with an adjustable jaw.
2. An unexpected or troublesome problem, obstacle or dilemma.

## Etymology
Already in use, and not unfamiliar among mechanics, by 1832; see discussion and references at Monkey wrench § Etymology and history.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/monkey-wrench