But you probably have seen the standard example variable names "foo" and "bar" which (together at least) come from `fubar`

Which are in fact unrelated.

Unclear. ‘Foo’ has a life and origin of its own and is well attested in MIT culture going back to the 1930s for sure, but it seems pretty likely that it’s counterpart ‘bar’ appears in connection with it as a comical allusion to FUBAR.

Foobar == "Fucked up beyond all recognition "

Even the acronym is fucked.

My favorite by a large margin...

Interestingly, it was "Fouled Up Beyond All Recognition" when it first appeared in print back towards the end of World War 2.

https://en.wikipedia.org/wiki/List_of_military_slang_terms#F...

Not to be confused with "Foobar" which apparently originated at MIT: https://en.wikipedia.org/wiki/Foobar

TIL, an interesting footnote about "foo" there:

'During the United States v. Microsoft Corp. trial, evidence was presented that Microsoft had tried to use the Web Services Interoperability organization (WS-I) as a means to stifle competition, including e-mails in which top executives including Bill Gates and Steve Ballmer referred to the WS-I using the codename "foo".[13]'

What people would print and what soldiers would say in the 1940s were likely somewhat divergent.

100%

FUBAR being a bit worse than SNAFU: "situation normal: all fucked up" which is the usual state of us-east-1

My favorite is JANFU: Joint Army-Navy Fuck-Up.