If you can't possibly remember what something is called, what it is, what it does, or why it does it, it instantly becomes a 'wossname'
...one of them big...brown...wossnames.
by Dave hucklesby November 16, 2003
Thing. Whotsit. Item, person, place or object for which the proper name cannot be brought to mind.
I walked over the wossname and into the park.
by mylovelyhorse September 24, 2003