A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
litterbug (n.)
[litterbug 词源字典]
1947, from
litter
+
bug
(n.). According to Mario Pei ("The Story of Language," Lippincott, 1949) "coined by the New York subways on the analogy of 'jitterbug' ...."
[litterbug etymology, litterbug origin, 英语词源]