buck, pigroot

i have pretty much grown up with horses and i always thought a 'pigroot' (yeh lovely word ) was when only the hind feet came of the ground http://youtube.com/watch?v=r_R8gVLuvvM
http://youtube.com/watch?v=022HXQylV84
and a buck is when all four feet leave the ground and the back arches http://youtube.com/watch?v=DnGwMS3RRMA
http://youtube.com/watch?v=qoSJL5R4J3k


however on different horsie internet sites people (especially from other countries) seem to call a buck and a pigroot the same thing.
Do you call these two the same?

I call a pigroot a halfarsed attempt at a buck. And a buck is when they put some effort into it.

Agreed. A pigroot is more like a kickup of the back feet and a buck is when they horse is really meaning it.

Agreed. Pigroot...i'm pissy Buck...I'm pissed

I think a buck has to have intension behind it.