I found the term "Tamazie party" in a play by Joe Penhall. Is it a party related to drugs? Or does it have an idiomatic meaning? If it is a special party, is it just in Britain?
It is related to drugs, namely Temazepam, which is a hypnotic (ie a cure for insomnia). I have never heard the phrase 'Tamazie party' before, but I assume it refers to sitting around getting stoned on said drug.