Definition of neat's tongue in US English:

neat's tongue

(also neats' tongue)

noun

historical
  • The tongue of a cow or ox, especially as an article of food.

Origin

Early 17th century; earliest use found in William Shakespeare (1564–1616), playwright and poet. From the genitive of neat + tongue.

Pronunciation

neat's tongue

/ˈniːts tʌŋ/