A is for Assassination. Klingon Chancellor Gorkon was the victim of one in early 2293.
B is for Beta Quadrant. Location of various gaseous anomalies.
C is for California, the location of Starfleet Headquarters, Starfleet Academy and the San Francisco Ship Yards.
D is for Devil. Klingons don't have one but they know the habits of ours.
E is for Enterprise CVN-65, the nuclear-powered American aircraft carrier that bore the famous name during the late 20th and early 21st centuries.
F is for Federation Funny Farm.
G is for Gowron, Chancellor of the Klingon High Council from late 2367 until the end of 2375.
H is for Harry Kim's pants.
I is for Iliaprobe. Looked like Ilia. Talked like a Dalek.
J is for Jem'Hadar Jism.
K is for the Klingon colony on Khitomer, devastated by a Romulan attack in the year 2346.
L is for Lexington, the USS Lexington. Named after the famous aircraft carrier that's parked in Corpus Christie, Texas. And the American Revolutionary War battle.
M is for Mugatu.
N is for Nog of Ferenginar, the very first Ferengi to ever serve in the Federation Starfleet.
O is for Obriens moobs.