An intransitive verb phrase is a phrase that combines a verb with a preposition or other particle and does not require a direct object (e.g., Everybody please stand up.).
The kids were fiddling around with the buttons, and now the TV won't switch on.Los niños estuvieron jugueteando con los botones y ahora la tele no enciende.
While we're fixing things in the house, Sam's just fiddling around in the garage.Mientras nosotros arreglamos cosas en la casa, Sam no hace más que enredar en el garaje.