It's a dirty, studenty, damp smell
Hey, that's a bit harsh!
Should I bring it up with his boss?
I wouldn't go above his head - I'd be utterly humiliated to think people had complained about such a thing without addressing me first.
We had a similar thread no too long ago. I think I said I'd make a joke about it, complain about the smell, sniff my own armpits as if it could be me, and then say to him "Phew, is it you, have you been for a run or something? Hang on, there's some deodorant around here somewhere" (you need to have some men's deodorant lying around, as if another employee has left it by accident). I'd go for full jokey, not looking remotely concerned/worried (or he'll know you've been thinking about it).
Don't be fooled by their innocent looks. All Emmas Are Evil. And they're coming for you.
Hitched Awards 2013 - officially a scary blunt.