(1). A term used when an individual isn’t an expert in your particular field, but knows enough about it to get you in trouble when you screw up.
“So Scott, I’m certainly no IT expert, I mean, I know enough to be dangerous, but don’t you think setting the password to the server as “server password” could have led to that virus? Boss wants to see you by the way.”
(1). Someone who always asks some embarrassing “gotcha” question just before a decision’s about to be made.
“So, we had the prospect on the ropes, ready to sign us up, and his lousy, bomb thrower consultant asks us to walk him through how we pass along our costs to customers. I have no freakin’ idea how we do that! I’m a salesman, not a goddamned accountant!”