The names of two neighbouring hamlets in Cumbria, the roadsign for which reads like a direction sign for a particularly annoying person (a mislet) who is described as heaning. A useful exclamation that sounds much ruder than it is.
Heaning mislet! My bike has got another puncture.

or

He is such a heaning mislet.
by bodhisattvan September 16, 2009
Get the Heaning Mislet mug.