It was an advertising campaign in the late 80's (I know this cause it was a popular phrase us young kids in high school thought was cool)
I think it was the Transportation/Hwy Department that use it for advertising or a campaign to keep Texas roadways clean.
Did I pass?
I tried to melt my JK down and inject it, but it didn't work!! I tried to chop it into a fine powder and snort it, but it didn't work!!