What a fun set of words that mean the same thing and follow a basic pattern: rampillion, rampillian, or rapscallion. There is a racehorse who's run in the UK and Mauritius named Rampillion I. But I think it's Shakespeare who uses it the best in Henry IV, Part 2. Falstaff's Page speaking to the Hostess of the Tavern: "Away you scullion! you pamillian! you fustilarian! I'll tickle your catastrophe."

I look at rascallion as having the same root as rascal, and although rascal can mean playfully mischievous, it can also refer to a mean, unprincipled, and dishonest person.   

In the South, the rowdiest teen rampallion in town (or a school) used to get the nickname Rebel. In a shocking confession, I used to fall for them with dreary regularity. 🙄