A loser is a person with a very low score in the game of life. Typically, losers perform badly in classic point-scoring opportunities such as job interviews, courtship (as in, maritime law [as in, marry-time law]), and yes, drawing bad life tiles. However, many losers become such by striking out at not being criminals.
The opposite of a loser is a winner. Winners are distinguished by their glowing teeth and willingness to do the unconscionable at the request of management.
A loser may hold a hand to his forehead in the shape of an "L," to show his loserhood.