"wait, why are we talking about circus animals? when did this conversation get adderailed?  "what were we supposed to be doing again? i'm pretty sure we've adderailed
a situation where a conversation or activity ends up being derailed or taken off track because of a
""wait, why are we talking about circus animals? when did this conversation get adderailed?  "what were we supposed to be doing again? i'm pretty sure we've adderailed" What is the definition of "adderailed"?