They see a ring (on a person) and become possessive over it (the person) and covet it above all else. This can also make them a vile wretched person, of a low nature, slinking in dark places.

Best advice, toss them into a volcano and keep on walking.
"Why is Mike stalking Lisa's Facebook all day? Oh she just got engaged and he's lost it, dude's got Gollum sickness."
by CaptAmazing November 11, 2015
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Gollum sickness: They see a ring (on a person) and become possessive over it (the person) and covet it above all else. This can also make them a vile wretched person, of a low nature, slinking in dark places.

Best advice, toss them into a volcano and keep on walking. ;)
"Why is Mike stalking Lisa's Facebook all day? Oh she just got engaged and he's lost it, dude's got Gollum sickness."
by CaptAmazing November 11, 2015
Get the Gollum Sickness mug.