shakes head something to do with Futurama but I never watched that.

Yeah - that's all the comes up - Never seen it either

It is a reference to the time of year in the west of the US when prairie fires are common. The heat from the ground

causes the air to blur what is on the other side of the hot area so it is a blur from the burn => blurn.

On days when you get that effect it is a "Blurnsday"

Did you make that up?

Would I do that?

nice one, Dirk

Any other words you would like defined?