Comprehensive resource for understanding and mastering English idioms
The idiom "bundle of nerves" is used to describe someone who is very tense, anxious or nervous. It's a figurative expression that compares a person's emotional state to a bundle of twigs that are tightly tied together and are easily agitated or upset.
The origin of the idiom "bundle of nerves" can be traced back to the 18th century. It was first used in print in an English dictionary published in 1756, which defined it as "a person so agitated and uneasy that they look like a bundle of strings or nerves." The idiom has since become a common expression used to describe someone who is feeling tense or anxious.