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1. A FOSS luser. 2. A fossie; but usually more despective. 3. A GNU zealot. 4. A GPL freeloader. 5. A Linux lover. 6. A derogatory insult to a foss user. From a contraction (of the shortening) of FOSS + user. 7. A bastardarization of loser. 8. Misspelling of fusser.
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