What is the meaning of Let_go_of?

To release from one's grasp; to go from a state of holding on to a state of no longer holding on.

To emotionally disengage or distract oneself from a situation.

To dismiss from employment.

To ignore (a comment, etc.).

To fail to maintain a standard of appearance, behavior, or performance.

1. To gain weight.

   To gain weight.

   Used other than figuratively or idiomatically: see let,‎ go.

   Source: wiktionary.org