Oil overfilled, wasn't before

[Sylvanite]

The oil was stone cold, not run in a week. I could be wrong, but I was pretty sure the oil level was alright when I last checked it. So I think it would have to be something catastrophic that has gone wrong (I drove it at most 40 miles since the last time I checked the oil level), or some kind of measurement error/ problem with the stick.

What is short sticked?