Where Does the Word Snitch Come from?
The Oldest Meaning of the Informal Snitch Is "To Betray" Or, as a Noun, "Informer." This Probably Stems from 18Th-Century Underworld Slang, in Which Snitch...
The oldest meaning of the informal snitch is "to betray" or, as a noun, "informer." This probably stems from 18th-century underworld slang, in which snitch meant "nose" — perhaps because a snitch is really nosy.
Who created the word snitch?
"informer," 1785, probably from underworld slang meaning "the nose" (1700), which apparently developed from an earlier meaning "fillip on the nose" (1670s).
Why do they call a snitch a rat?
Rats are often associated with filth and disease. So, if someone calls you a rat, it's not like being called a fox. It's an insult. ... These negative traits have led to the informal meaning of rat, "hateful person," "liar," or "double-crosser." You can also use rat as a verb to mean "betray or snitch on."