Source: Tafsir al-Ahlam al-Kabir (Ibn Sirin)
The snail in a dream indicates travel and moving from one place to another. Whoever sees himself eating it will gain wealth from travel.
Source: Ta'tir al-Anam fi Ta'bir al-Manam (Al-Nabulsi)
The snail indicates a stingy man. It may also indicate a house or a servant.
Source: Al-Isharat fi Ilm al-Ibarat (Ibn Shahin)
The snail is interpreted as a man who strives for people's interests. Seeing it indicates goodness and benefit.