A portmanteau of "Jonah" + onanism, invented to describe the mental masturbation of conservative columnist & author Jonah Goldberg. "Jonanism" is defined as the ultimate or highest form of wankery. Coined by internet commenter "calling all toasters" in early 2008.

He/she is very brave and very outgoing, meaning Jonan will speak what’s on his/her mind. Not caring what other people say about him. Messing with Jonan will lead to pain. adding jonan on snap will save u from inevitable death: @gabriel030808