Dreams involving unusual sensations or substances, like your legs being covered in butter, can have various interpretations. Here are a few possibilities:

1. Feeling Overwhelmed: Butter can symbolize richness or excess, which might suggest you're feeling overwhelmed by a situation in your life. It could represent burdens that you feel are ‘weighing you down.’
2. Desire for Comfort: Butter is often associated with comfort food. This dream might indicate a longing for comfort or nurture in your waking life. It could be a sign that you need to take care of yourself more emotionally or physically.
3. Sticky Situations: Being covered in butter could also represent feeling stuck or unable to move freely in a particular area of your life. You may be grappling with a situation that feels messy or complicated.
4. Transformation and Change: Butter can also signify transformation, as it is derived from milk and often used in cooking to enhance flavors. This could point to changes or transformations you are going through or need to embrace.

Consider what is currently happening in your life and how these themes might resonate with your experiences. Reflecting on your feelings and circumstances can provide further insights into the meaning of this dream.