What is the meaning of Edging?

present participle and gerund of edge

Anything that forms, defines, or marks the edge of something.

A technique involving the placement of the edge of the climbing shoe on a sharp hold.

The operation of shaping or dressing the edge of anything, as of a piece of metal.

The sexual technique of maintaining a high level of sexual arousal for an extended period of time without reaching orgasm.

Source: wiktionary.org