Martherd

The ability to ruin a perfectly good flow of play in sporting events, like an unprovoked error under zero pressure - like passing to the opposition or playing it out of bounds.

You totally Martherd that one mate

Marthered

When you inadvertently put the ball out of play in any sport in an un-provoked fashion. An un-forced error by a sportsman.

You totally Marthered that one