Originally Posted by NicknameMy
Nunu is no AP-carry, he is a supportive ap-bruiser jungler.
He can be a strong AP carry versus the right team, but your point about him being a strong jungler is correct. Logically, he's probably a tier 1 AP carry, as well as a tier 1 jungler. However, the point can also be made that he can perform both roles at the same time when built as AP, thus listing him specifically as a jungler somewhat redundant. Nunu is a special case in that Consume works at 100% jungling efficiency regardless of what Nunu's item build is, especially since AP/AS/CDR all work towards making Consume more efficient.