Obwestry (abs.n.)

Bloody-minded determination on part of a storyteller to continue a story which both the teller and the listeners know has become desperately tedious.

Obwestry

Oshkosh (n., vb.)

The noise made by someone who has just been grossly flattered and is trying to make light of it.

Oshkosh

Oundle (vb.)

To walk along leaning sideways, with one arm hanging limp and dragging one leg behind the other. Most commonly used by actors in amateur production of Richard III, or by people carrying a heavy suitcase in one hand.

Oundle

Oughterby (n.)

Someone you don't want to invite to a party but whom you know you have to as a matter of duty.

Oughterby

Ossett (n.)

A frilly spare-toilet-roll-cosy.

Ossett

Oswaldtwistle (n. Old Norse)

Small brass wind instrument used for summoning Vikings to lunch when they're off on their longships, playing.

Oswaldtwistle

Ozark (n.)

One who offers to help just after all the work has been done.

Ozark

Osbaston (n.)

A point made for the seventh time to somebody who insists that they know exactly what you mean but clearly hasn't got the faintest idea.

Osbaston

Ockle (n.)

An electrical switch which appears to be off in both positions.

Ockle