good for (someone or something)
idiomDefinition of good for (someone or something)
1
—used to express approval of someone "I passed the exam!" "Good for you!""He got the job." "Good for him!"
2
: resulting in something good or desirable for (someone or something)
Regular exercise is good for you. Hot soup is good for a cold. Being with friends is especially good for him right now.
3
—used to say how long something will continue or be valid This offer is good for the remainder of the month.Our old car still runs and should be good for a few more years.
4
somewhat informal
: able to provide or produce (something)
I'm good for a hundred dollars if you need a loan.