Replying to Why so many names? tail..blunt.. and other stuff..

Tail, Blunt, Lead Tail, True tail, Reverse tail? Ik, im retarded for not knowing this but correct me please

-Tail/blunt = same thing? skis crossed and grabbing tip? no? ok:(
-Lead tail = for example if you spin left you grab tail of your ski with your left arm while skis crossed?
-True tail = uncrossed tailgrab?
-Reverse = ?? <- and does this even exist?

and bonus question:
Difference between flatspin and rodeo is that rodeo goes more inverted, while flatspin spins little more flat? then why is the very inverted flatspin 3 called flatspin and not rodeo 3 if 5 is more inverted?logic.
some people call very flat flat 5 a rodoe and vice versa. even pros, Twall said he did biggest rodeo 5 in sun valley and it was very flat "rodeo" so why didnt he call it flatspin then? >.<' it should just be called rodeo 5 like in snowboarding no matter how flat u do, the trick idea is the same.
i usually call them just rodeo and i dont get in the details, but it annoys when i say either rodeo or flatspin, someone corrects me that its the other one..
and then claim/
i can do all these tricks but still dont get the names for them.. especially what is blunt and tail..