[Xylakant]

Might be regional, I certainly know it, I’m from southwest germany.

[MrGilbert]

Northern germany also knows it. Maybe it has something to do with age. It's usage has declined over the years, I think. Maybe because it belittles the underlying issue, as it sounds rather "cute" to a native speaker. Just an educated guess, though.

[weinzierl]

Bavaria (southeast Germany) agrees. It's colloquial and - maybe regional - but not an uncommon word in my experience.

[avhception]

NRW reporting in, too