sorya-sakamichi-no-apollon-ch18.png

Translation

• Context: the speaker confidently talks about how amazing Jun was.
• {Jun-nii no koukousei φ yatta} koro wa
  淳兄の高校生やったころは
  Around the time {brother Jun [was] a high school student}.
• sorya mou
  そりゃもう
  "That [was] already"
  • Expression used to assert something was incredible.
• {kakkou yoka nante} mon janakatta desu yo
  格好よかなんてもんじゃなかったですよ
  Not something {[you'd call just] cool}.
  • He was more than just cool.
  • Note: this is kyuushuu dialect. In which i-adjectives sometimes end in ka instead.
  • kakkou yoka 格好よか
    kakkou yoi 格好よい
    kakkou ii 格好いい
    Cool.
• kenka mo meppou tsuyokashi
  ケンカもめっぽう強かし
  In fighting, too, [he was] extremely strong.
  • tsuyoka 強か
    tsuyoi 強い
    Strong.
• atama mo yokashi
  頭もよかし
  [He was also smart.]
  • atama ga yoka 頭がよか
    atama ga yoi 頭がよい
    atama ga ii 頭がいい
    "Head is good."
    To be smart.