Dreaming of someone you know associating with uncouth and sketchy people at a messy house party could reflect your concerns about that person's social circle or choices. This dream may symbolize feelings of worry or anxiety regarding their well-being and the influences in their life.

The messy environment of the party might represent chaos or disorder, suggesting that you perceive this person is in a tumultuous situation or making questionable decisions. It could also indicate a part of you that feels out of control in relation to this person's behavior or choices.

Consider your feelings during the dream. Were you anxious, protective, or indifferent? These emotions can provide further insight into your subconscious thoughts about this person and their current circumstances.

If this dream resonates strongly with you, it might be worth having an open and honest conversation with them about your concerns, ensuring it comes from a place of care and support.