@wonkazoo: seriously off thread and should be moved somewhere else. But these definitions are very different from what I have been taught. In fact if I used the terms like this my acro instructor (significant figure in local IAC etc etc) would disown me. Here is what I have been taught (and I believe is the terminology used by IAC):
-- aileron roll: what you have described as a barrel roll. Coordinated, positive G and neutral elevator throughout. Can keep a glass of water on the glareshield if you're Bob Hoover. Must be done fairly quickly (generally at the aircraft's maximum roll rate unless it's an Extra) to keep the nose drop under control.
-- slow roll: what you have described as an aileron roll. Totally uncoordinated, nose kept on a point by carefully synchronised use of all three controls. Highly vomit-provoking. Can be done as slowly as you want, the extreme case being a rolling turn.
-- barrel roll: combined loop and roll, performed similarly to an aileron roll but with up elevator throughout. Not
afaik used in competition, but fun to do around appropriately sized puffy cumulus.
-- bunt: very much a British-English term for exactly what you describe. A pushover in US English.
I often see the term "barrel roll" used to describe what I would call an "aileron roll". If I inadvertently hold back stick while performing a roll, I get told "you barrelled that". Maybe the UK terminology is different, I've never flown acro (or indeed aeros) in the UK. (Just like I learned to ski in French, it was years before I could talk about skiing in English).