To pirate media, such as movies, music, and games using the internet. The little people like gaffers (lighting electricians on movie sets) get fucked the worst by piracy.
When a FIT girl has an ugly face you put a bag on over her head and gaffer it up with gaffer tape to ensure one does not come to displeasure while fucking a fir bird due to the sight of her face.
Boy 1: See tat girl,
Boy 2: Yea, her face a bit ugly tho
Boy 1: gaffer it up, one time, i dont buisness.