Gui: The name of a god like being with indescribable power. Gui gets mad bitches n hoes and is the most loveable person in the room. His wind tattoo is fucking sick also
Adjective
Portmanteau of the acronym 'graphical user interface' and 'retarded'. Meaning someone that needs a GUI to perform all computer related tasks.
If one can only use a point and drool interface then one can reasonably describe them as GUI-tarded.