To dream of being thrashed, or of thrashing someone else is a warning of trouble over someone you love.
If you dream of trimming or pulling out your eyelashes, you are experiencing a loss in strength. You may feel vulnerable or at the mercy of somebody. Another possible meaning is that you are reshaping yourself and eliminating unwanted thoughts and habits.... My Dream Interpretation
A flashlight may represent a search or a quest for spiritual truth. It bnngs to light what is hidden in the dark spaces of the subconscious and may suggest that you are searching to uncover the clues to a problem that is plaguing you.... Ariadne's Book of Dream
For this to appear indicates the dreamer has either the need to control others or to be controlled by them. We may be trying to control by using pain either physical or emotional.
1- Because the whip is an instrument of punishment we need to be aware that in trying to force things to happen, we may also be creating problems for ourselves.
2- A whip suggests corrective punishment and self-flagellation.... Ten Thousand Dream Dictionary