szalinski said:
WTF is a "gooner"?
Some definition I found on the urban dictionary(which is pretty accurate)
"A man who watches porn all day long and strokes his cock for hours while edging nonstop and becomes r*t*rded in the process. The only thing that matters to him is his dick and nothing else."
(I assume this can also be applied to women who masturbate in the same way though)