Takajo Aki vs Nagao MariyaThe girls have to shop for items to give away to the fans.
Akicha is really excited about some frying pans, but the other girls glance over it and pretty much ignore her.
Shortly after:
Nagao: "This looks good"
Akicha: "What is it?"
Nagao: "I dunno."
Then Akicha basically repeats what Nagao just said in the same tone, really sarcastically.
It was pretty brutal. If even Akicha thinks you're an airhead then you gotta get your act together, haha.
Source: 140223 AKB48 Nemousu TV Season 14 ep06