fit as a flea

idiom

informal, British
: in good physical condition : very healthy and strong
I feel (as) fit as a flea this morning.

Browse Nearby Words

fit as a fiddle
fit as a flea
fitch
See all Nearby Words

Cite this Entry

“Fit as a flea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fit%20as%20a%20flea. Accessed 4 May. 2025.

Copy Citation

Share

Love words? Need even more definitions?

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

Popular in Grammar & Usage

See More

Words You Always Have to Look Up

How to Use Em Dashes (—), En Dashes (–) , and Hyphens (-)

Words in Disguise: Do these seem familiar?

Why is '-ed' sometimes pronounced at the end of a word?

Democracy or Republic: What's the difference?
See More

Popular in Wordplay

See More

8 Words with Fascinating Histories

'Za' and 9 Other Words to Help You Win at SCRABBLE

More Words with Remarkable Origins

Terroir, Oenophile, & Magnum: Ten Words About Wine

8 Words for Lesser-Known Musical Instruments
See More

Popular

See More

Words You Always Have to Look Up

8 Words with Fascinating Histories

'Za' and 9 Other Words to Help You Win at SCRABBLE
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Word Game Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
Missing Letter A daily crossword with a twist
chain-with-string
Fastest Quiz Ever: Missing Link Five seconds to figure out the word that fits bot...
See All