A bastardised French form of the English term "Germ Warfare" used to describe militaryaction using biological weapons.
"Them folks might at some point have the capability to use weapons of mass destruction and Guermonprez" - George W Bush in justifying the 2003 genocide in Iraq
1) A materialist. Someone who insists on using different sorts of gear in the most unneeded of times. 2) A giermo will always buy the most on a shopping trip, or buy the most flashy/visible things. 3) Also a name for a snobby rich person.
Guermo is short for Guillermo. It also is used for a Puertorican who looks like a Mexican. They are also very fast runners from all of the escaping they do from Trump's Border Control because they are illegal immigrants.