v. t. & i.1.To feel or grope in the dark.
References in classic literature ?
Grubble was standing in his shirt-sleeves at the door of his very clean little tavern waiting for me.
I watch television or potsy around or sleep until noon and then grubble into the office.
Software need not be restricted to 2D images, but can incorporate simple 3D functionality that will build on the motor skills of children through two handed manipulation of the Grubble cube.
McKenna, of Grubble Road, Fazakerley, was later interviewed and initially claimed the listings were done by his mother, but later admitted he had been behind the scam.
Grubble, Early English Furniture and Woodwork, 2 vols.