Moo.
And Flibbertigibbet. I recently called someone a flibbertigibbet, and she had no idea what I was talking about. Don’t most people know that word?
Carrot.
Oh, man, I am just cracking up <restrains giggling to type):
Serendipitous! SERENDIPITIOUS!
SERENDIPITOUSSERENDIPITOUSSERENDIPITOUSSERENDIPITOUSSERENDIPITOUSSERENDIPITOUSSERENDIPITOUS!
It looks really cool when you copy and paste it over and over and over like I just did. Ha ha I love it.
Another one: Fortuitous. FORTUITOUS!!!
I guess I’m just into the whole fate thing!
Whoa… !
It didn’t wrap or anything!
Now I know not to do that again, don’t I?
Tinkle.
Never fails to crack me up.
Was
waswaswaswaswas
wozzzzzzzzzzzzz
Poontang.
Boing.
Seattle.
(Simpsons reference)
Muffin.
Bologna bologna bologna bologna.
Pants
Pantaloon
Leiderhosen
giggles
boink!
quote:
originally posted by Hastur
Boing.
boink!
Bork!
Lather.
and, as a bonus, two words that make me laugh: trundle and dromedary.
Heh heh…“Seattle.” 
I second ‘nipple!’ (which is not as creepy as a third)
And I’ll throw in “diphthong!”
Thong
Dung
Wallop
Mukluk!
Doughnut.
Dooooughnut.
Teetotaler. Heh.
Acetominophen
But now that you mention them, “booth”, “broth” and “pants” are right up there, too.