Mongoose dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.
Interpretation 1 — myjellybean
If you dream about a mongoose attacking a snake, you will have to defend your reputation against nasty gossip. In your dream, if the mongoose succeeded in killing the snake, you will succeed against all hostilities.
Source: My Dream Interpretation • Author: myjellybean
Interpretation 2 — Ibn Seerin
(See Weasel)
Source: Islamic Dream Interpretation • Author: Ibn Seerin