over my dead body
(idiomatic, usually hyperbolic) Under no circumstances; absolutely not.
"Can I get a new sports car?" "Over my dead body!"
Legalising the Basque flag over my dead body. Manuel Fraga Iribarne
It'll be over my dead body that I'll have to get a shot, I will not do that. I won't do it, and they better not touch my kids either. Sarah Palin