It seems that the word Spam is just plain over spammed and has to many "one size fits all" uses.

Search Engine Spam is something totally different.
1.> Hyper-theading hundreds of pages that Hyper-thead to hundreds of generated pages inside of an invisble layer hidden within the desired page, and all of the topics, body and links are tuned your targeted product.

2.> Pretending to be a search engine and relevent to the search subject, yet all pages eventually lead to your target.

3.> Content overload, beating the relevance requirement, the link requirement, the keyword to relevance requirement and so on then cross-linking similar pages.

That should give you a picture . . . . .