Slip / Slippery dream meaning is explained below using 1 different source. Each interpretation is shown with its source.
Interpretation 1 — James R. Lewis and Evelyn Dorothy Oliver
Stumbling or slipping in a dream may signify that the dreamer is forcing himself or herself to do things incompatible with the dreamer’s nature or destiny.
Source: Dream Symbols in The Dream Encyclopedia • Author: James R. Lewis and Evelyn Dorothy Oliver