User blog comment:GooerGaming/High School DxD BorN episode 8 review/@comment-67.62.189.6-20150527023125

One thing I found interesting about this episode is what Issei calls "Bilingual". If you listen, it really sounds like he's saying Pai-lingual (Pai=oppai). In this case, Booblingual would be an accurate (though awkward) translation.