To walk on air means to feel extremely happy or excited. It is used when someone feels so joyful that they seem almost weightless.
The expression comes from the image of a person being so light with happiness that it feels as if they could float or walk above the ground. It has been used in English since the early 1800s.
The expression comes from the image of a person being so light with happiness that it feels as if they could float or walk above the ground. It has been used in English since the early 1800s.
After hearing he got the job, he was walking on air.