nub

Short definition from Wiktionary

Noun

1. 1
   The innermost section of a chrysalis in a silk cocoon.
2. 2
   A small knob or lump.
3. 3
   The essence or core of an issue, argument etc.
4. 4
   The clitoris.
5. 5
   A pointing stick.
6. 6
   A passage of Shakespearean blank verse.
7. 7
   Alternative spelling of noob.

Verb

1. 1
   To hit the ball weakly.
2. 2
   To push; to nudge.
3. 3
   To beckon.
4. 4
   To extemporize a passage of Shakespearean blank verse