Pun of the Day You can see all the brown colours of the rainbow, with a colitisscope. 03/10/2026 · The Pun Gents You can see all the brown colours of the rainbow, with a colitisscope. Tagged: colitis, colours, digestion HilariousPretty GoodOKPretty BadTerrible (8 votes, average: 4.25 out of 5)