Illustration of flea
: any of an order (Siphonaptera) of small wingless bloodsucking insects that have a hard laterally compressed body and legs adapted to leaping and that feed on warm-blooded animals
see also flea in one's ear
Examples of flea in a Sentence
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Around those runs, the Pats hit Miami with a 35-yard flea flicker and an end around to exploit the poor discipline of their defensive backs.
—
Andrew Callahan, Boston Herald, 6 Jan. 2026
The biggest play of the drive came when Maye hit rookie wide receiver Efton Chism for 35 yards on a flea flicker.
—Doug Kyed, Hartford Courant, 5 Jan. 2026
Then, in the fourth quarter, Dowdle slipped on a flea flicker exchange in the red zone, which led to a fumble recovery by Tampa Bay.
—Mike Kaye
updated January 3, Charlotte Observer, 4 Jan. 2026
These days, accommodations come with memory-foam mattresses, cozy blankets, antique nightstands, and an overall flea-market-chic aesthetic.
—AFAR Media, 30 Dec. 2025
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“Flea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flea. Accessed 13 Jan. 2026.
Kids Definition
flea
noun
: any of an order of small wingless bloodsucking insects with a hard body and legs used for leaping
Medical Definition
flea
noun
: any of the order Siphonaptera comprising wingless bloodsucking insects that have a hard laterally compressed body and legs adapted to leaping and that feed on warm-blooded animals see cat flea, chigoe sense 1, dog flea, rat flea, sand flea, sticktight flea
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