mackerel

On-Yomi: セイ

Koohii stories:

1) [cameron_en] 1-12-2008(20): Holy mackarel! That fish just turned blue!

2) [abaddon] 5-6-2008(9): Fish, blue: After the young girl found that disappointing mackerel fish (see story horse mackerel (#2818 鯵)), she felt a bit blue.

3) [nolusu] 9-6-2009(4): Http://en.wikipedia.org/wiki/Blue_mackerel.

4) [oregum] 11-6-2010(1): MACKEREL are BLUE FISH.

5) [n1williams] 15-1-2010(1): MACKEREL are a FISH that appear BLUE and as some Japanese say are " 青臭い (あおくさい)" = a certian kind of "fresh stink.".