The following is an excerpt from a children's book, "Captain Underpants, and the Perilous Plot of Professor Poopypants" by Dave Pilkey. The evil professor forces everyone to assume new names.....

Use the third letter of your first name to determine your new first name:

A=poopsie
B=lumpy
C=buttercup
D=gadget
E=crusty
F=greasy
G=fluffy
H=cheeseball
I=chim-chim
J=stinky
K=flunky
L=boobie
M=pinky
N=zippy
O=goober
P=doofus
Q=slimy
R=loopy
S=snotty
T=tootie
U=dorkey
V=squeezit
W=oprah
X=skipper
Y=dinky
Z=zsa zsa

Use the second letter of your last name to determine the first half
of your last name:

A=apple
B=toilet
C=giggle
D=burger
E=girdle
F=barf
G=lizard
H=waffle
I=cootie
J=monkey
K=potty
L=liver
M=banana
N=rhino
O=bubble
P=hamster
Q=toad
R=gizzard
S=pizza
T=gerbil
U=chicken
V=pickle
W=chuckle
X=humperdinck
Y=gorilla
Z=stinker

Use the fourth letter of your last name to determine the second half
of your last name:

A=head
B=mouth
C=face
D=nose
E=tush
F=breath
G=pants
H=shorts
I=lips
J=honker
K=butt
L=Brain
M=tushie
N=chunks
O=hiney
P=biscuits
Q=toes
R=buns
S=fanny
T=sniffer
U=sprinkles
V=kisser
W=squirt
X=humperdink
Y=brains
Z=juice