if you say that something someone says is sour grapes, you mean that they said it because they are jealous.

I don't think it's such a great job - and that's not just sour grapes because I didn't get it.

• keep the peace
• keep the wolf from the door
• keep time
• keep to
• keep to something
• keep to yourself
• keep track
• keep track of
• keep track of someone
• keep track of something
• keep under hat
• keep under wraps
• keep under your hat
• keep up
• keep up appearances
• keep up something
• keep up to date
• keep up with
• keep up with someone
• keep up with something
• keep up with the Joneses
• keep up with the times
• keep wits about
• keep wits about you
• keep word