ploppingのようなどんな単語でも探してください。
 
1.
Term used mostly in the DC area to indicate agreement with something somebody said.
Matt: Trenita, my French class was cancelled this afternoon so I have the afternoon free.

Trenita: I know that's right.
Mattthewzによって 2005年03月31日(木)
 
2.
when you think something is right but you're just not sure enough to disagree
Guy 1: Justin Bieber is a homo.
Guy 2: Iknowthatsright
Dreem2Realityによって 2011年08月12日(金)