Maro is Kanon. It is a gimmick that she started pushing after management told her to drop Cinderella Revolution.
The Maro gimmick was ridiculed by Rina as being ridiculously lame in the pro wrestling promos.
Risako on the other hand has supported this gimmick and has adopted the nickname Riro.
^^^
Maybe Meimei uses "ore" and "teme" a lot?
A while back Takeuchi's complexion was discussed and it was mentioned that wearing lots of makeup and excessive sweating wasn't good for your complexion. However, sweating was misspelled as "swearing" so it was speculated that Akari's complexion was bad because she would often refer to herself using the word "ore" and refer to others as "teme" which are both macho and rude terms.