Guggenheim
Endoplasmic Reticulum
bouillante (French for “boiling”…it’s been my favorite ever since my high school teacher described it as “like having a party in your mouth!”)
kumquat and uvula are fun, too!
antidisestablishmentarianism I really enjoy that one 
oh, and balalaika just wounds like it would be fun to play! (hai! hai! hai! hai!)
pulchritude
defenestration
asinine
snarky
coniption (sp?)
And in the multicultural category;
oy
agita (heartburn --> Italian (although maybe only in a Sicilian dialect, since I learned it listening to dad’s family). And along those lines,
fungul (sp?) You know, as in, “Bah! Fungul!” (accompanied by rude gesture)
babushka
oscillating
acetylsalicylic acid
Baby - say it over & over & it loses its meaning. Of course, a lot of words do that for me…
Pituitary…Pituitary…Pituitary
mellifluous
jejune
masticate
Spork (I can’t belive no one else said this!)
Quark
Whisper
*Italian for butterfly: farfalla
Italian for eighty-eight: ottantotto
Italian for synthesizer: sintetizzatore
Italian for vulva: vulva
This is a dialectal contraction of va fa un culo, literally ‘go make an asshole’ (implying ‘bend over, you’re gonna get it up your poop chute’). How rude can you get? I don’t know if there is any way to spell it. Maybe “vaffa ‘ncul’.”
malarky
sausages
bollocks
shenanigans
shite
So can I…in just under two seconds. 
I like to ask girls if they know where their fovea is. Some blush, some look like they want to slap me.
It’s the ones who do know that I take interest in.
And it’s the one who actually saw that I was trying to have fun at her expense that I’m currently “significant” with!
PS - the fovea is the central area of the retina, the high resolution part that you use when you look directly at something. But it sure sounds to a lot of people like it’s somewhere between the legs.
dipsomaniac
inebriate
exuberant
dim sum
tira misu
cognac (not only is it fun to say, but it’s fun to drink, too!)
<pronounced in a manner of cat, meowing>
heeeelp
weeeird
</pronounced in a manner of cat, meowing>
clackamas
quiliute
puyallup
sequoia
Ask someone from Massachusetts to say “Saugus” (a town north of Boston) in their thickest accent. It’ll have you rolling on the floor. I’m originally from Taunton (south of Boston, it’s pretty much equidistant from it, Providence, and the Cape. I got out quickly) and that’s a pretty funny name to say in a New England accent.
Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina. Ugueth Urbina.
I’ll never stop saying … Ugueth Urbina.
sphygnonmometer (my very, very favorite)
aluminum
bituminous
calliope
dessicate
effervescent
felonious
glial
hellacious
ichthus
jello
knead
lambaste
mirage
nubile
oblisk
preternatural
quip
rhythm
scythe
torque
ululate
vessitude
wrangle
xenophile
yen
zeke