You can do a straight up backflip with a 360 in it (aka a mobius), and you can do your more traditional rodeo 7, which would be flatter, and not so much of a straight over flip.
only legit backflip 180 i have ever seen was delomers in the jibberish movie, i actually thought it was just going to be a reg backflip but he somehow landed switch???
learn your hot doggin' roots! a mobius is what the O.G. freestylers called a back full. the main difference is that the term 'mobius flip' was around before people started refining tilt twisting (arm drops) in skiing acrobatics. once that became more refined and the sport progressed it was called a back full.
at least you know what a full is though