Ambiguous tag.
For Japanese style pork cutlet, use katsu_(food) and food tags. See also katsudon_(food).
For the Nagasarete Airantou character, see tonkatsu_(nagasarete_airantou).
For some potential artists named tonkatsu: tonkatsu_* search | *_tonkatsu search
For some other characters named tonkatsu: tonkatsu_* | *_tonkatsu