Being skinny in a dream means the mind is sorting through a time of exhaustion. This image shows that the internal reserves have been pulled down low.
The brain uses this state to show how much vitality has been used up over recent days. This reduction in capacity is a sign that the system is operating on minimal levels, which leaves the dreamer feeling vulnerable in the waking world. The dreamer finds that the current state is one of necessary conservation.
For its more general meaning: Dream about weight
I dreamed of my current partner being skinny
A dignified welcome to you,
Your dream draws attention to condition, situation and acceptance. This dream denotes that you feel trapped in a situation or condition. You need to approach a situation or matter on your own instead of leaning on others. There is a situation that you are refusing to see or accept.
May your dreams be both revelation and respite.