This is a misspelling of the word petroleum. Some complete assholes get to report you to your boss if you use this spelling.
Suck it Hedigh! misspelling petrolium with "petrolieum" is not a chance for you to mess with my job!
by a51paint September 19, 2013
A name involving 3 parts....The first is the name rex, like T-rex. The second is the english sounding part "emous" making rexemous. The third part is the name of a brand like petrolium jelly..........Now say it with me. Rexemous Petroliun Jelly.
by anonymous May 07, 2005