cockroach

noun5

1. •
   Any black or brown straight-winged insect of the order Blattodea that is not a termite.
2. •
   (slang, offensive) Term of abuse.

   • I want a divorce, you cockroach!
3. •
   (slang, offensive) A person or a member of a group of people regarded as undesirable and rapidly procreating.

   • During the Rwandan genocide, Hutu genocidaires labelled Tutsis as cockroaches and called for their extermination.
4. •
   (slang, disapproving) A person from New South Wales.
5. •
   (slang, no longer used) A hard lump of brown sugar.