Stimpy is number 165 in the Pop Animation line. He is from 1991's The Ren And Stimpy Show.
Stimpy is a 3-year old (29 in cat years) fat, dimwitted, and rotund red and white Manx cat with a brain that's the size of a peanut. His favorite song is "Happy Happy Joy Joy" and he likes to watch cartoons, most notably "The Muddy Mudskipper Show". Stimpy is voiced by Billy West and by Eric Bauza in the spinoff Adult Party Cartoon.
Ren And Stimpy were first announced by the Funko Blog on December, 14 2016 and later on released in February 2017.
Like his counterpart Ren, Stimpy was released with a chase repaint as a firedog. This chase is meant to represent his appearance in the 1991 episode Fire Dogs. The chase has a 1/6 ratio.
In addition to the chase, Stimpy also made a appearance alongside Ren in the Happy, Happy, Joy, Joy Ren & Stimpy two pack. This set recreates the duo's appearance in the 1992 episode Stimpy's Invention. Slight differences were made to Stimpy's pop, most notably adding his button used in the episode. It was released in 2017 as a SDCC exclusive limited to 2500 pieces.