gold bug
A person with a particularly great enthusiasm for investing in goldA person with a particularly great enthusiasm for investing in gold (the metal).
Meaning
4 senses(informal)A person with a particularly great enthusiasm for investing in gold (the metal).
The swing in equities scared him so much that he became a gold bug for a while.
(informal)A person who is opposed to fiat currency and supports a return to the gold standard.
The swing in inflation scared him so much that he became a gold bug for a while.
(informal)A person who collects gold items.
If you see the decorating style in his living room, you'll know that he's a gold bug.
(informal)A particularly great enthusiasm for gold — whether as an investment, a hoard, a collectible, or otherwise — portrayed figuratively as an arthropod that bites people and infects them, causing a mental illness.
bitten by the gold bug
He was bitten by the gold bug a long time ago, and some of the venom is still in his veins.