For someone who is accustomed to "simple 'n' spacious" surroundings, having his house "redecorated" with lots of glass cut-flower vessels could indeed seem invaseive.
Completely unexpected remnant fecal matter, commonly referred to as skid marks, that appear in the gusset of one's grunders without warning. Despite one believe that they had thoroughly cleaned their bum and under carriage post defecation, Invasive Feces still appears.
Carl's girlfriend Carol was catching up on laundry. She began sorting the whites and darks when she spotted a excessive amount of Invasive Feces in one of the pairs of Carl's grunders. She removed the pair from the wash and left it next to Carl's bed pillow.
An invasivore is someone who eats invasive species (Caribbean lionfish, green mussels, Asian carp etc) both for culinary enjoyment and to help control outbreaks of invasive species in native environments.
John: I heard about this new restaurant that serves lionfish fillets. They're delicious and I want to eat as many as I can to get them out of our bay.
Jill: Yeah, I'm becoming a total invasivore. I even ate a python steak the other day.