Derived from the saying "Colder Than A Witch's Tit."
Brody: "Damn, got real cold up in this"
Jacob: "I have deduced through various observations, there is, in-fact a witch within our domain. This has led me to the certain conclusion that We Got A Witch In This Bitch"
"let's get some beer up in this bitch"
"this funeral is really sad, someone get some tissues up in this bitch"
"let's get this thermometer up in this bitch"