"Grown upy"

Click Below Video of Charlie We were watching mario brothers on Net Flix. It's a series from the 90's I guess. It is a cartoon, but it always starts with a live segment of actors role playing a skit as Mario and Luigi. When the live segment starts, Charlie always announces, "this is the grown upy part." Just wanted to clarify that we weren't letting our kids watch "grown upy" parts in movies that are not age-appropriate. Just thought it was a cute saying invented by Charlie bear.