Dreams about social gatherings, like house parties, can often reflect your real-life relationships and feelings of connection or disconnection with others. In your dream, the party and the undercooked pizza might symbolize feelings of dissatisfaction or frustration in your social life, especially if you felt let down by Barry's cooking. This could represent a situation where you feel your needs are not being met by others.

The part where you needed to go to Target, especially while feeling a bit vulnerable (being a little drunk), suggests a desire for comfort or support. The fact that your friends weren't responding could highlight feelings of abandonment or uncertainty in your relationships. You might be feeling like you're reaching out for help or connection, but not receiving the support you expect.

Overall, this dream could be urging you to reflect on your social interactions and whether you feel supported by those around you. Consider addressing any feelings of frustration or the need for better communication with friends in your waking life.