get some cold comfort
To have sexual relations with a corpse.
Poor old Alec, he got sacked from his new job at the undertakers when the boss caught him getting some cold comfort.
Some Cold
"Some Cold" is a Eastern Canadian phrase meaning that it is very cold outside, it comes from the saying "It's really something cold out there"
Son: Dad! I'm going outside!
Dad: Okay. but wear a coat, it's some cold out there eh!
Dad: Okay. but wear a coat, it's some cold out there eh!