Third-person singular simple present indicative form of knob.(verb)
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Use "knobbing" in a sentence
"Both structural deformities, hammertoes and claw toes cause "knobbing" of the toe knuckles that are both painful and unsightly."
"If you are going to quote the Bible, do so in context, and study the history of ancient Israel before you go hob-knobbing about Levitical Law - the laws were given for a specific reason that had many different implications then than they do now."
"He spent time hob knobbing around Europe instead of taking care of business."