Definition of trickle-up in English:

trickle-up

adjective

Political Economy Politics
  • Of, relating to, or based on the theory that wealth, information, change, etc., moves or should move upward through a hierarchical structure or organization (as a company, an economy, a social group, etc.).

noun

Political Economy Politics
  • This theory or an instance of it in operation.

Origin

1950s; earliest use found in The New York Times. After trickle-down.