monkey wrench noun
plural monkey wrenches
plural monkey wrenches
Learner's definition of MONKEY WRENCH
[count]
: a wrench that can be adjusted to grip or turn things of different sizes活动扳手 — used in U.S. English to refer especially to a large, heavy wrench with a long, straight handle用于美国英语,尤指长柄大扳手
throw/hurl/toss a monkey wrench into
US, informal
: to damage or change (something) in a way that ruins it or prevents it from working properly阻挠;破坏