knobbing

== English == === Verb === knobbing present participle and gerund of knob === Noun === knobbing (plural knobbings) A pattern of knobs or lumps. The amount by which a bowl is wider in the middle than at the top and bottom. (UK, vulgar, slang) A session of penetrative sexual intercourse or the act of sexual penetration. (mining) The process of rough dressing stone; the act of cutting off projecting points from quarried stone. The practice of cutting off the sharp tips of the horns of cattle, leaving rounded knobs.