Symbology is the study of symbols. Here are some simple symbological examples from that now
standard dirty dirty English
alphabet:
b and d are obviously erections viewed from the guys right and left respectively, while p and q are when he's soft, standing on his head, or on top.
V and W, a-la Dan Brown, mentioned by another poster are the chalices, therefore obviously symbolize three
bitches with their legs spread, the W of course, is preferably twins, while v and w are hopefully at least
18.
U and n I personally take to be cups, one upright, the other spilled, which I why the prefix "un" is nearly always preferable to the prefix "in"
B of course then is
boobs or buttcheeks
O and o, as in orifice(s) are obvious (men only have two)
g and q in different fonts therefore are those guys with curved dicks.
and so on and so forth