let oneself go

let oneself go

 
1. Fig. to become less constrained; to get excited and have a good time. I love to dance and just let myself go. Let yourself go, John. Learn to enjoy life.
2. Fig. to let one's appearance and health suffer. When I was depressed, I let myself go and was really a mess. He let himself go and gained 30 pounds.
See also: let
References in periodicals archive ?
I had been wondering, I confess, howsuch rippling fitness could be maintained, it would be too easy to let oneself go when there is nothing on the telly any more and then it came to me in a sensational headline this week: Armchair walking is now possible.