The noun form of "tanked," describing someone's recent failure, flop, or career downfall. It is mostly used on Stan Twitter when talking about artists and celebrities.
"Radical Optimism's tankery will never be forgiven..."
Means: "Hey whats up man? Let's go grab some beers, meet me at the liquor store, I got the first round. Let's get tanked homie!", <---All in one word. Tankerismasizmo