The weekend before one gets the "good" paycheck for each month. Because one can't achieve much when s/he is faced with this kind of weekend, s/he feels as if s/he were a person stuck playing baseball in right field.
It's so boring being stuck in the house with nothing to do 'cause I don't have any money to go anywhere. I just paid the rent, so it's another paycheck down the toilet. Oh, well, another right field weekend!