A is for Alpha Quadrant, where a lot of Star Trek is set.
B is for bones. All Dr McCoy said he had left after his divorce.
C is for Cardassia, where Dukat and Damar are from.
D is for Denobulans, one of the earliest alien species with which humans established regular contact after the invention of warp drive.
E is for Elevator. What some dunces call the turbolift. Dr McCoy I'm looking at you.
F is for Federation Funny Farm. Where McCoy would've ended up if Kirk hadn't broken him out of detention.
G is for the Gorlan Uprising, a major revolt against Terran Imperial rule in the Mirror Universe that was brutally crushed by that side's Captain James T. Kirk.
H is for Halkan peace monkeys.