My favorites from a page on bullyonline.org:

Arachnoleptic fit (n.) The frantic dance performed just after you've accidentally walked through a spider web.

Beelzebug (n.) Satan in the form of a mosquito that gets into your bedroom at 3 in the morning and cannot be cast out.

Cashtration (n.) The act of buying a house, which renders the subject financially impotent for an indefinite period.

Caterpallor (n.) The colour you turn after finding half a grub in the fruit you're eating.

Decaflon (n.) The gruelling event of getting through the day consuming only things that are good for you.

Extraterrestaurant (n.) An eating place where you feel you've been abducted and experimented upon. Also known as an E-T-ry.

Grantartica (n.) The cold, isolated place where art companies dwell without funding.

Kinstirpation (n.) A painful inability to move relatives who come to visit.

Lullabuoy (n.) An idea that keeps floating into your head and prevents you from drifting off to sleep.

Sarchasm: The gulf between the author of sarcastic wit and the recipient who doesn't get it.
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(1) Young I may be, but even young people are entitled to their opinions.
(2)Attempting to silence me doesn't hurt me, but the silencer.
(3) I must remain true to myself.