Trubbish resembles a full, dark green garbage bag that with a knot at the top that acts like ears. Trubbish has oval-shaped eyes and large triangular teeth that resemble broken glass. Its arms that look like trash spilling out of small tears in the bag with pink and blue objects protruding out of them. Its feet are dark green and stubby.
This Pokémon was created when a mixture of domestic and industrial waste underwent a chemical reaction of some sort. Trubbish emits noxious, burp-like gases which, when inhaled, will render the victim bedridden for a week. As evidenced in the anime, Trubbish's ear-like tufts stand straight up when startled, are lifted if happy, and lowered if it is feeling down. Furthermore, in the same episode, it is also explained that once Trubbish befriends a person, it will cease expelling foul odors. It prefers unsanitary places, such as garbage dumps.
Trubbish, the Trash Bag Pokémon. Trubbish prefer to live in dirty places like garbage dumps. It is said they were born when a chemical reaction occurred between an abandoned trash bag and industrial waste.
This concludes the entries from the Best Wishes series.
Trubbish shares similar traits to Grimer and Koffing. All three Pokémon are pure Poison-types with a single evolution, roughly the same base stat totals, and themed around pollution.
Physically, Trubbish is modeled after a plastic bag stuffed with garbage, its tied-off top somewhat resembling long, rabbit-like ears. This may draw from the fact that in both English and Japanese slang, a clump of lint and dirt can be called a "dust bunny". This is further evidenced by how the name of its evolved form is derived from "dust" as well.
Trubbish is a combination of trash and rubbish.
Yabukuron may be a combination of 破く yabuku (to tear) or 破ける yabukeru (to get torn) and 袋 fukuro (bag) or ぶくぶく bukubuku (loose-fitting/baggy).