You know you're writing modern YA when...

[mollyringle]

...MS Word's spell-check "errors" include the following:

texted/texting
oooh
hottie
snog
laddie
ick
yay
ringtone
Spidey
raincheck
crackhead
indie
wifi
kissyface
hickie
ew
ain't
fanboy
eyeshadow
jangly
sucky
bleh
yuckiness
offed (oneself)
Googled
aww
nutjob
microwaved/microwaving
snarky
creeped (out)
wowsers
chitchatty
sexeh
YouTube
stalkerish
winky (emoticon)
righto
grody
iPod
earbuds
spaz
skank
Chapstick
hiya
freakin'
sluttiness
sniffly
hyperdrama
cluelessness
buttload
tard
blissed (out)
slimeball
woohoo
neato

LJ doesn't like most of those either, incidentally. But it allows some of them to pass without the red underlining, so it's apparently a step hipper than MS Word.