Plural of buttinski; people who butt in or intrude into others' business without invitation.
From buttinski, a 20th-century Americanism created by adding -ski to butt in. The -ski suffix suggests Eastern European origin but is actually applied as comic Yiddish-influenced slang.
Buttinski is pure American invention—mixing butt in with a fake -ski ending to create a funny-sounding insult for nosy people, probably from Jewish immigrants playing with language in a playful, self-aware way.
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