Caminar literally means "to walk". However, when used to refer in past tense to a project, an idea, a strategy or an action, it means quite the opposite. If a project, an idea, a strategy or an action caminó, then it stalled and won't be moving forward.
Don Ramón: ¿Qué pasó? ¿No que ya estaba sobres para traer a un arquitecto catalán para renovar la vecindad?
Señor Barriga: Hazte. Bien sabes que eso ya caminó. Quería un camarón estúpido.
Mr. Ramón: What's up? I thought you were eager to bring a catalan architect to renovate the housing complex?
Mr. Barriga: Don't play the fool. You know very well that ain't happening. He was asking an insane amount of money.