Lamentor

[luh-ment-awr]
Lament + Mentor
noun

1. A regrettable adviser.

Ex. "Look, Joey, I know you've heard I'm a 'lamentor' but I'm the most fun med student in the program and I can drink any of the third years under the table. I don't know much about Organic Chemistry but I know about sexual chemistry, and really, what else matters?"