- Also frog spittle. any of several filamentous freshwater green algae forming floating masses.
- cuckoo-spit(def 1).
Origin of frog spit
First recorded in 1815–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- another name for cuckoo spit
- a foamy mass of threadlike green algae floating on ponds