Sierra cement
n.— «The only vehicles allowed were gravel trucks and graders working to remove what is known as “Sierra cement,” the type of thick, clumpy snow that can play havoc with tire treads and drivers’ nerves.» —“Many Without Power Amid California Storm” by Jesse McKinley in San Francisco, California New York Times Jan. 6, 2008. (source: Double-Tongued Dictionary)
Further reading
A newscaster covering treacherous driving conditions offered this advice: Keep it between the mustard and the mayo. In other words, “Make sure your car stays between the yellow line and the white line on the road.” This is part of a complete episode...
Pun alert: What’s the best thing about Switzerland? This is part of a complete episode. Transcript of “What’s the Best Thing About Switzerland?” Hey Grant, what’s the best thing about Switzerland? St. Bernard’s...