Isotonic 

Isotonic is a popular recently developed type of sports drink, usually with Glucose or Fructose flavouring. Its mostly known as a cheap alternative to branded sports drinks such as 'Lucozade' or 'Powerade'.

"Hey look they have powerade" "Nah, I think ill go with some cheap Isotonic"

Isotonic by PurpleRubberDuckie June 9, 2009

iSoToxic 

something you'll never be.

When I looked on youtube, I saw my ex-boyfriend, isotoxic, and wanted to be like him.

iSoToxic by Your Boi Churacy May 4, 2017