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1 definition by
IamIwhoIam
SIS
Secret Internet
Shorty
, an acronym used to describe pictures of a guys dick but using
angles
or
photoshop
to make appear significantly bigger than it really is.
Look at this
dickture
I just got from this guy! I know know for
a fact
he is a SIS!
by
IamIwhoIam
August 17, 2011
Flag
Get the
SIS
mug.