well-digger's ass 

Older slang, used in cold weather to place emphasis on how extremely cold it is outdoors.

Damn, it's colder than a well-digger's ass!

well-digger's ass by Rod Brock August 1, 2006

well digger's ass 

A crude reference point to describe ambient temperature.

It's colder than a well digger's ass outside.

well digger's ass by buttedude July 12, 2016

colder than a well digger's asshole 

extremely cold and dark.

"Daaaaammmmn...it's colder than a well digger's asshole out there!!"

colder than a well digger's asshole by Well Digger September 1, 2011

welldigger's ass

A degree of coldness below about 40 degrees.

It's colder than a welldigger's ass outside.

welldigger's ass by arrow_keys September 27, 2005