curbstoning n. the conducting of (streetside) business without a license, especially automobile sales and formerly real estate; among census-takers, falsifying information about a household. Etymological Note: Both senses of the curbstoning come from the notion that the activity is performed on the street, at the curb. (source: Double-Tongued Dictionary)
Further reading
Amid court-ordered busing in the 1970s, a middle-school teacher tried to distract her nervous students on the first day of class with this strange assignment: find a monarch caterpillar. The result? A memorable lesson in the miracle of metamorphosis...
She sells seashells by the seashore. Who is the she in this tongue twister? Some claim it’s the young Mary Anning, who went on to become a famous 19th-century British paleontologist. Dubious perhaps, but the story of her rise from seaside...