Do Americans commonly use the phrase “floating on the air”?
Native speaker’s answer
Rebecca
Yes, this is a commonly used informal expression. While SpongeBob here has used "floating on air" to express that the boat drives so smoothly that it feels as if he is "floating," "floating on air" is also used to mean that one is extremely happy. Ex: I just got my dream job! I feel like I'm floating on air. Ex: John is floating on air right now. He just asked his crush out and she said yes.