a one - piece plastic container includes a body defining a longitudinal axis and having an upper portion , a sidewall portion and a base portion . the upper portion has a spout defining an opening into the container and a finish offset radially outwardly from the spout . a trough defines a passage into the body . the trough slopes toward the passage and defines a non - orthogonal angle relative to the longitudinal axis . according to other features , the sidewall portion is integrally formed with and extends from the upper portion to the base portion . the base portion closes off an end of the container . the finish defines a means , such as at least one thread , for attaching a closure thereon .