Definition:
Lousy is a slang term used to describe something or someone that is of poor quality, unpleasant, or unsatisfactory.
Use case:
You can use it to express your disappointment or dissatisfaction with something or someone. For example, "I had a lousy day at work," or "This restaurant has lousy service."
• My boss is always in a bad mood and makes us work overtime without any extra pay - he's a lousy manager.
• I had a lousy day at work today - my computer crashed and I lost all of my files.
• I can't believe I wasted my money on this lousy movie - the plot was terrible and the acting was even worse.
• The weather has been so lousy lately - it's been raining every day and I can't go outside for a walk.
• That restaurant had lousy service - it took forever to get our food and the waiter was rude.
• I feel lousy today - I think I'm coming down with a cold.