The OED says noogie means a "hard poke or grind with the knuckles, esp. on a person's head" with a first quotation from 1968.
They say it was popularised by Saturday Night Live in the late 1970s but is of "Origin unknown".
There's nothing on Etymonline.
So where does the word noogie come from?
What's the etymology?
Can you find anything earlier?
Best Answer
Some theories
Wiktionary's etymology:
Copying wedgie?
The OED's first-known wedgie is from 1977. Whilst this is later than the first noogie in 1968, it's not a million miles away, and playground humour won't necessarily have been documented thoroughly; I'm sure both terms were in use earlier (commenter Bib remembers noogie from the mid-1950s). But it does lend some doubt on the wedge->wedgie/nudge->noogie theory.
Yiddish?
I searched Google Books, but didn't find anything earlier than the OED's 1968:
The American author Israel Horovitz was born to a Jewish family, and the play is set in New York City. This lends some weight to a Yiddish origin.
NY / knuckles?
At least there appears to be a New York origin. Etymologist William Safire received plenty of correspondence from New York Times readers who recollected its use in the Bronx and Brooklyn (one class of '47) and added: