Of a totally fictitious issue printed for collectors, often issued on behalf of a non-existent territory or country (not to be confused with forgery, which is an illegitimate copy of a genuine stamp).
Undesirable or harmful.
Counterfeit or fake; not genuine.
Based on false or misleading information or unjustified assumptions.
Incorrect, useless, or broken.
A liquor made of rum and molasses.