nash takes a ton of charges, so unfortunately that happens sometimes. does it count as dunking on someone if they don't even put their arms up or jump? as far as amare goes, he wasn't anywhere near the play and jumped from the other side of the block. that dunk was neither on amare or nash.
this is dunking on someone
http://www.youtube.com/watch?v=VvJQK1HM6bw