What is "knobbing"

Knobbing \Knob"bing\, n. (Stone Quarrying) Rough dressing by knocking off knobs or projections.

vb. (present participle of knob English)

1. n. a circular rounded projection or protuberance [syn: boss]

2. a round handle

3. any thickened enlargement [syn: node, thickening]

4. an ornament in the shape of a ball on the hilt of a sword or dagger [syn: pommel]

5. [also: knobbing, knobbed]

See knob