On Idaho license plates, the first characters designate the county in which the vehicle was registered. For example, Boise is in Ada county (1A), the most populous county in Idaho. The neighboring towns to the west of Boise are generally considered to be worse places to live than Boise. It is no coincidence that the worst of these towns, namely Nampa and Caldwell, lie in Canyon county (2C). It is a well-known fact among Boise residents that people from 2C have a bad reputation on the roadways. If one sees questionable driving activity such as cutting people off, excessive speeding, and generally not following driving laws, look at the plates and the chances are they have 2C on them. This has led to the development of the expression of getting "2C'd" (pronounced two-seed) on the road.
You: "Man, I was driving home the other day and this guy flies past me in the left lane, cuts me off, then slows way down to turn right. He was in a jacked-up diesel truck with 2C plates blowing black smoke everywhere while blasting Nickelback." Friend: "I'm so sorry man, you done got 2C'd."
by Bitter_Local_406 December 20, 2018