What's the T equivalent of a Masshole?

Marley Gibson reports that a jerk on a cellphone racing up the stairs at Arlington station knocked into her yesterday, sending her flying and breaking her foot - and of course he never stopped to see if she was OK. Naturally, it gets even worse:

... As I'm bent over trying to figure out what to do and how to walk this (are you ready for this?) panhandler comes over and asks me for change!

I said, "I'm just in a little bit of pain here..."

Tool.

GOD...I love this city! Only in Boston would get friggin' panhandled as you're doubled over in pain. ...