ORIGINAL: hroachen
Toilet Bowl: Sort of very tight circles, usually nose high, think of a cross between a flat spin and tight circles. When you get it right the plane looks like it's water circling around in the toilet bowl, but not going down.
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err......sorta, but not really. The Toilet Bowl: From a knife edge, you do a horizontal waterfall. The plane rotates nose over tail from a knife edge position and continues in knife edge, with out loosing alitude.
The cross between a flat and a knife edge spin, kinda what your describing is called a Tornado. Another very cool trick. Getting the plane to do it is a WHOLE other story and im not too sure if anyone could give you written way to do one.