Furshlugginer Bube mit wilden Augen.
“Furshlugginer”
https://www.urbandictionary.com/define.php?term=furshlugginer
An aracane adjective used as an expletive in the earliest issues of Mad magazine (e.g. 1950’s) - comparable to “garshdarned” (see examples). However, maybe it’s true that it was also used to mean ‘asshat’ later on, as claimed above.) Possibly a parody of some German or Yiddish word, I suspect. Correct spelling may actually be ‘furshluggenner’.