Define the letters of the alphabet using self-referential common phrases (e.g., "first of all" defines "a").

A        first of all, midday
B        fifth of bourbon, starting block
C        fifth of scotch
D        end of the world, back of my hand
E        end of the line, beginning of the end
F        starting friction, front
G        middle of the night, starting gate
H        end of the earth, top of the heap, middle of nowhere
I        next of kin
J        center of project
K        bottom of the deck, two of a kind
L        bottom of the barrel, starting line
M        top of my head
N        center of attention, final countdown, end run
O        second in command
P        bottom of the heap, the first of painters, starting point
Q        at the front of the queue, top quality
R        middle of the road, center of inertia
S        _Last of the Mohicans_, start of something big
T        top o' the morning, one's wit's end, bottom of my heart, last, central
U        second guess
V        center of gravity
W        end of the rainbow, top of the world
X        wax finish, climax
Y        top of your head, center of the cyclone, early years, final extremity
Z        led zeppelin