Can anyone explain the meme "Kaiba" in the last panel? (its meaning, how/when it's used.. etc) I've seen it used at times, and Kurisu is drawn with it and the face all the time.. lol It's one of those I just can't figure out..?

「ｶｲﾊﾞｰ」とは脳の記憶をつかさどる部位である「海馬」のこと。
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"Kaiba" is the "hippocampus", the part controlling brain memories.

http://dic.nicovideo.jp/a/%E3%83%BD%28*%E3%82%9A%D0%B4%E3%82%9A%29%E3%83%8E

http://renaworld.bex.jp/archives/420
the one makise drew in her explanation,
http://ja.wikipedia.org/wiki/%E6%B5%B7%E9%A6%AC_%28%E8%84%B3%29