a metal cook convention什么意思?

问题描述:

a metal cook convention什么意思?
We're in that green station wagon next to the pissers.
Our dad got a bladder transplant last month.
Trust me,it's been more like a metal cook convention than a vacation.
a metal cook convention在句中是什么意思呢?实在无法理解

a medical convention,not metal cook convention