amusing/uncommon/cool-sounding words/phrases:

abysmal
abominate
ambrosia
apocryphal
acrid
apostasy
aplomb
abject
befuddle
boor
boon
boob
balderdash
bunkum
baffoon
baboon
claptrap
crescent
cookie
conundrum
cryogenic
cretin
confound
creep
careen
contumely
convex
concomitant
coitus
copulate
concupiscence
caprice
drudgery
distasteful
deleterious
decadent
delectable
despicable
denude
don
disembowel
dismember
drivel
dunce
diurnal
epitaph
epithet
esoteric
effervescent
enumerate
eradicate
flabbergasted
flibbertigibbet
fly-by-night
finicky
fecund
fastidious
fauna
flora
fail-safe
gregarious
grungy
goon
humdrum
hoodwink
hullaballoo
hubris
incipient
immersion
impecunious
indelible
inimitable
indispensable
invidious
innocuous
ineluctable
itinerant
inasmuch as
insofar as
irascible
joie de vivre
jaundice
lugubrious
lacrimose
loquacious
leer
limpid
lascivious
lanky
lampoon
mendacious
mendicant
meridian
malarkey
noontide
nocturnal
nefarious
noncommital
necromancer
nephology
neurotic
nincompoop
nimble
obfuscate
obliterate
obeiscance
obtuse
occult
peruse
pomp
piquant
perfidious
quagmire
quiescence
reticent
repose
rancor
succulent
succubus
sycophant
senescent
sedentary
serene
sucumb
suffuse
schadenfreude
supple
stupor
sever
truculent
torsion
tenacious
uncanny
unctuous
voracious
veritable
vindictive
viridian
whimsical
zephyr

Phrases:

vanity, vanity; all is vanity
nothing new under the sun
takes the cake
easy as pie

And my favorites:

take it easy, before easy takes you.

and