Definition:
"Lame" is a slang term used to describe something that is boring, uninteresting, or not cool.
Use case:
You can use "lame" when you want to express your disappointment or disapproval of something that you find unexciting or dull. For example, "That movie was so lame, I fell asleep halfway through" or "I don't want to go to that party, it sounds pretty lame to me."
• I can't believe you're still hanging out with those lame-ass people.
• Stop being so lame and come out with us tonight.
• That movie was pretty lame, I don't know why everyone likes it.
• That's so lame, I can't believe you're still using that excuse.
• I'm not going to that party, it sounds really lame.
• Your jokes are so lame, they make me want to fall asleep.