I don’t like spam!
Sperm.
Say it real slow: speeeeerrrrm.
Also, “spiffy” sounds just as it should! 
Would you like it here or there?
Would you like it in a house? On a mouse?
It’s funny you should bring this up. I recently heard an episode of KPBS’s A Way With Words in which a caller described some kind of pathological revulsive reaction she had to the word moist. Her husband and children were not permitted to say the word around her. The hosts of the show mentioned that this is a known phenomenon and that they had found some kind of group on the Internet made up of people who couldn’t stand the word moist.
Any type he likes, I should think.
As for inherently funny words, I was browsing a Spanish discussion board on model planes the other day, and the translation software (I wouldn’t have lasted fifteen seconds browsing in Spanish) suddenly popped up the word “sausage” in a context where “sausage” made no sense at all. Let’s face it, when you’re discussing model planes there are tanj few contexts where “sausage” does make any sense. I have to say I snerked out loud at that.
sausagesausagesausagesausagesausagesausagesausagesausagesausagesausagesausagesausagesausage
This thread is the moistest.
I also hate words that end in sps and sts.
wasps
hasps
clasps
gasps
tests
bests
masts
::shudder::
Sunrazor, you would be refering to Eddie Murphy playing the elderly grandma. I think “Stone Philips was the only white boy to make me moist” was the line.
Oh…and badger.
Badgers badgers badgers badgers badgers…
I think scrotum is the unsexiest word ever. My boyfriend is strictly forbidden from saying “scrotum” when we’re getting it on, as it’s a complete turn-off for me. He’s free to use any other slang or euphemisms when making requests.
Oo, “euphemism,” there’s a fun word.
(Bolding mine.) 
Did you just make up a new word? I like it. What does it mean?
A little less annoying are words containing the sound ster
monster
mobster
lobster
alabaster
blaster
caster
faster
master
plaster
toaster
yesterday
stir
stirrup
cistern
sister
blister
astern
sternum
moister
Down by the sea lived a lonesome oyster,
Every day getting sadder and moister…
</cole porter>
Anyway, it was referred to before, but my onomatopoeic word is “baby.” Doesn’t it just sound as though it should mean baby? Bonus points if you pronounce it with a really explosive initial B and vowels that are as short as possible.
And speaking of inherently funny words …
Man, it’s true! There’s a website for everything.
I LOVE that commercial.
Sausage. Sausage. SAUSAGE. Sausagesausage.
Sausage is funnier if it’s spelled “sossidge”.
Moist…moist…a dreadfully tinny word. Like “newspaper” or “litter-bin”
Now “sausage” - there’s a good woody sort of word!
Kids today, no respect for classic literature! Larry Niven made up this word and used it in some of his books, including the Ringworld ones – it’s an expletive meaning “there ain’t no justice”. See also Heinlein’s TANSTAAFL for choice vintage geek-chic swearing.
Pus - moist pus
I think if you had no prior knowledge at all as to what it was, if you were presented with a moist, slightly clammy puddle of sperm, you would instinctively call it ‘sperm’.
Ca-ri-booouuuuu
Moist, pus and sperm should never be in the same “post”