if someone says you should be put on the spit, what does that mean?!

Best Answer - Chosen by Voters

A spit is a rod they put a roast on, before cooking it in a rotisserie or over a fire. When you see people roasting meat over an open fire, and the meat is on a stick that they are slowly rotating - well, that is spit.

So basically they are using it as a way to indicate you should be severely punished for something.

This fully explains it
http://en.wikipedia.org/wiki/Rotisserie

it means tried