1. A person who lacks knowledge of anything beyond their own tiny little world. They are both very ugly and very rude. They lack basic skills of human expression and communication. They are to be avoided at all costs.
2. A person who cannot be recognized immediately as human; an unfortunate looking being.
1. I was accosted by a beefcream in the lunch line today, he cut in front of me, yelled really loud next to my face and sprayed me with his saliva.
2. Did you see that new receptionist in accounting? What a beefcream!