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Watch Johnny Test Season 3 Episode 13 Online

  • 6.391/10
  • COUNTRIES: Canada,United States of America
  • Subtitles: English

Johnny drinks an unstable isotope so he can get sick and not have to study for a test for school. Unfortunately, not only does the isotope give him red spots and a purple tongue, if it's not cured within four hours, it's going to give him immense bloating, cause violent coughing, and eventually make him explode.