Milkshake Duck Definition

noun

Someone or something, especially on social media , that is widely considered to be endearing , but is then discovered to be or have done something deeply flawed or distasteful .

Wiktionary

Origin of Milkshake Duck

From a by Ben Ward (pixelated boat) on June 12th, 2016: "The whole internet loves Milkshake Duck, a lovely duck that drinks milkshakes! *5 seconds later* We regret to inform you the duck is racist".

From Wiktionary