a free loader
A freeloader is a friend who drinks your beer, eats your chips, and leaves you with a hangover and a bill.
My friend took my last pizza and said 'I'll pay you back'... he never did.
She took my pills and my money and said she'd come back when she had 'a few bucks'... she hasn't come back since.
He took my food, my drink, and my dignity. I still haven't gotten my dignity back.