speed demon

noun

Definition of speed demon 

chiefly US, informal

: someone or something that moves or works very fast The new cook is a regular speed demon. This computer is a real speed demon compared with/to my old computer.

Learn More about speed demon

Share speed demon

Statistics for speed demon

Look-up Popularity

Comments on speed demon

What made you want to look up speed demon? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

by force of circumstances

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Vocab Quiz

  • the-education-of-achilles-eugne-delacroix
  • Which is a synonym of discomfit?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!