Skip to main content
Home
Add a Definition
UrbanDictionary.store
Blog
Advertise
User Settings
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
#
Definitions by farther jack
bum knuckle
Share definition
Flag
The
lower
part of
the spine
, the
coccyx
.
I
slipped
on the ice
and landed on my bum
knuckle
.
bum knuckle
by
farther jack
June 14, 2010
0
0
Get merch
Shuffle