1) A devoted fan of Star Trek: The Next Generation and the subsequent Star Trek series.

2) Does not grok Spock

what the Trekkie nerds would rather have you call them

Someone who is obsessed with Star Trek. A nerd. Hates being called a trekkie because trekkies are more "extreme" with their obsession.

someone whoe prefers speaking Klingon to fucking

A STNG enthusiast.

Sgt. Quinney non-believer

A trekker puts on a backpack, and hikes. A star trek trekker doesn't. His favourite song is 'where no man has gone before.' Sounds like a feminist movement song. He prefers alien culture (Vulcan and Klingon) to his own. And he believes the star trek tv show is 'real.' Neil Armstrong made it to the moon. Zefram Cochrane didn't. Neither did William Shatner. William Shatner is an actor, not a astronaut. Like the other actors get paid to appear at conventions. Trekkers don't like Trekkies, because they're too hardcore. A Trekkie will ask how big are those photon torpodoes? They're 4 foot long and made of wood, an actor replied.