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pond scum
noun
Definition of POND SCUM
1
: any of various algae (especially spirogyra) or cyanobacteria
2
: a mass of tangled filaments of algae or cyanobacteria in stagnant waters
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First Known Use of POND SCUM
1864
Rhymes with POND SCUM
alum, aplomb, bass drum, bay rum, beach plum, become, benumb, degum, dim sum, dumdum, dum-dum, eardrum, far from, green thumb, hail from, ho-hum, how come, humdrum, income, in sum, outcome, side drum, snare drum, sour gum, steel drum, subgum, succumb, sweet gum, therefrom, to come, Tom Thumb, tom-tom, wherefrom, yum-yum
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