Feeling Exuberently Happy, but for a darker reason than pure happy-go-luckiness. . . or maybe your just British. . .
Murph: I'm feelin' real chipper today! I just stole a cookie and didn't get caught!
Laurie: Oh! A free cookie and no consequence! That'd make me Chipper Too!
Longfellow: I'm Chipper Too!
Murph and Laurie: Why?
Longfellow: I'm British! What do you expect?