a. A person who is constantly showering
b. A person who uses up all the hot water and leaves others to freeze
c. A person who takes an excessively long time in the shower (A.K.A. Bathroom Monster)
B. When Cindy was at camp it seemed as if you was always preceded by a Shower Monster. Not once her entire time there did she get a hot shower.
C. Jose's older sister was such a Shower Monster that often times she didn't leave the bathroom until after breakfast.