Refers to someone who pushes, often in a physical context.
La pujadora del mercado ayudaba a los clientes a cargar sus compras, siempre con una sonrisa en su rostro.
The pusher at the market helped customers carry their purchases, always with a smile on her face.
La pujadora empujó la puerta con tanta fuerza que casi se cae.
The pusher pushed the door with such force that it almost fell.