The phrasal verb are Good for Nothing

Good for Nothing
Meaning/Usage: Negative statement to indicate someone has no value; useless
Explanation: Another way to look at this statement is to say "There is nothing good about that person."
Some examplas explain more
1-That guy is good for nothing.
2-That girl is a good for nothing troublemaker.
3-I would not let anything he says bother you, he is good for nothing.
Conversation about phrasal verb
A- How come you don't like Tim hanging out with Mike?
B- Mike is good for nothing. He is always is in some sort of trouble.
Other Common Sentences
1-He is no good.
2-He is worthless.