Dic: come up for air

• 1: After staying under water for almost a minute, Jason had to come up for air.
• 2: Whenever you get off the phone and come up for air, I have a question for you. 
• 2: I want you to go to the store for me when you come up for air.
• 3: Don't those kids ever come up for air? 
• 3: When are you two going to come up for air?

1. Lit. to lift one's head out of the water to breathe.
2. Fig. to stop what one is doing for a different activity or rest.
3. Fig. to stop kissing for a moment and breathe.

...... http://idioms.thefreedictionary.com/come+up+for+air