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
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