jack-a-napes 

A haughty, insolent fellow.

"I do say, that new student is quite haughty and insolent, quite the jack-a-napes."

jack-a-napes by Ledbatz February 29, 2008

Jackanapes 

Jackanapes: Definition 1. Noun - Someone unimportant but cheeky in manner.

Kyle's a jackanapes; James is always screwing around, he's such a jackanapes!;
Li'l jon is such a jackanapes

Jackanapes by DizzieDee August 27, 2005