>Stop working hard
>Take things slow and easy
>Relax and have all worries out of one’s mind
>Participate in activities that are relaxing in nature and helps one rejuvenate
In common parlance, a person would be referred to in a vegetative state when he has lost his mental capacity and ability to do things by himself. The phrase is a milder version of that state which people choose in order to rejuvenate. This is a fairly modern phrase and originates in the late 90’s. The literary origin is not available, but this phrase has been used by Julia Robert’s character in the film called ‘Pretty Woman.’
Example
>After a tiring week, I like to veg out in front of the television during the weekend.
>My friend had decided to work hard until he turned 40 and then veg out and enjoy life.