I tend not to get hung up on definitions such as these, given the utter endless flux of cultural product. Garbage is garbage, shit is shit, and there is nothing even remotely appealing in it, ironic or otherwise. Schlock and kitsch are interchangeable labels to me, for in each I find something of interest, no matter how shallow or fleeting. Of course, this is all relative as one's shit is another's gold, and so on. But I defy anyone here to say anything bad about Ed Wood's "Plan 9 From Outer Space" or "Can't Stop The Music" starring the Village People. I will defend these two fine films to the death!
DP