- Block up - Get in the way of - sabotage - To block up; to stop up or close, as a way or passage;
to place an obstacle in, or fill with obstacles or impediments that
prevent or hinder passing; as, to obstruct a street; to obstruct the
channels of the body. - To be, or come, in the way of; to hinder from passing;
to stop; to impede; to retard; as, the bar in the harbor obstructs the
passage of ships; clouds obstruct the light of the sun; unwise rules
obstruct legislation.