There's a word for that?

Ragan.com frequently comes out with a list of little-known words that always make me laugh. Hope to add a few of these to my daily vocab:

Hypergraphia: a compulsion to write, sometimes uncontrollably. 

She was disappointed that her hypergraphia did not yield anything worthy of being published. 

Avuncular:
 having to do with an uncle; characteristic of an uncle. 

His avuncular tone undercut the value of his valuable advice. 

Aglet:
 the plastic or metal tube on the end of a shoelace. 

Those laces have lost their aglets; throw them in the trash. 

Defenestrate: to throw out the window. 

I am ready to defenestrate this worthless manuscript. 

Callipygian: having well-shaped buttocks 

The gym is full of people on a callipygian quest. 

Nullibiety: the state of being nowhere. 

After 12 years, Jack had reached nullibiety on his career path.