As a proper noun susan
is .
As a noun poop is
the stern of a ship or
poop can be (often|childish) excrement or
poop can be a set of data or general information, written or spoken, usually concerning machinery or a process or
poop can be a slothful person.
As a verb poop is
to break seawater with the
poop of a vessel, especially the poop deck or
poop can be (obsolete|intransitive) to make a short blast on a horn or
poop can be to tire, exhaust often used with
out .