dingleberry

American  

[ding-guhl-ber-ee] / ˈdɪŋ gəlˌbɛr i /

noun

plural

dingleberries

1. Slang. a small clot of dung, as clinging to the hindquarters of an animal.

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Usage

What does dingleberry mean? A dingleberry is a term for a small piece of poop clinging to the butt of a human or animal. It’s sometimes used as a way to call someone “foolish” or "stupid."And yes, there's an actual fruit-bearing plant called a dingleberry. It's a kind of cranberry. 

Etymology

Origin of dingleberry

1920–25; perhaps dingle + berry; perhaps by association with dangle