Refers to a phenomenon
in various types of chat
settings, where different conversations get mixed up because someone changes the subject while someone is thinking of or typing in a response to something someone said a while back.
This often leads to general confusion
, but can also lead to statements following others that make the reader suffer a stroke from laughing.
Watch these pages. I am going to try to dredge up a particularly funny example of leapfrogging, or at least invent one.