Japanese Sound Effects (SFX) for Manga
Often accompanied by small 'tsu' ( ツ ) at the end to indicate the drawing out of a sound... Thus 'ba' becomes 'baa'
Last update 2/2007
baa   rise
ba reach
ba rush, dash, slap, smack
ban バン open, like opening a door
batan   shut, slam
bashi   drop - something falls to the ground
biku ビク flinch, shudder, tremble
bikun ビクン blush, shiver
bofun   fwump - like a person falling onto something soft like a sofa
churu ちゅる slurp
dan だん whack
dara   drip, oooze - slow drip sound
doa どん thud
donn   scared
don どん thump, bang, thump, whump
dosu   thwack
doyon   depressed
fuu ふう pant, haa
fuun ふうン humph!
fura フラ wobble, waver
fuusa   fwshh - soft rustle of hair moving
ga grab
gacha ガチャ click, shut - of a door for example
gashan ガシャン clatter, shatter
gatan   rattle, clatter - like a chair moving
gi rustle
giku   shock, surprise
gishi ギシ rustle
goshi   wipe
goro ゴロ squkk
gu gulp, swallow hard
Guwa fufu   wahaha! Yes!
(I added the yes, but it's a wicked little pervy laugh of joy J
guu   clenching up
guku グク gulp, swallow hard
gui グイ grab, grip, squeeze
haa はあ gasp, aah, deep sigh
kaa   blush
Kabaaa   sit up
kara カラ tap
kashi   rattle, shake
kashiya カシヤ snap , click like in a camera taking pictures
kyoro   look around
ninini ニニニ loud buzz, alarm, clang clang clang
ni smirk, smile, grin
niko ニコ smirk
nu   scared
nu thwap
nubu ヌブ thwap
nuchi ヌチ stroke
pachi パチ clap
paki パキ snap
patan パタン click, tchk, door latch closing sound
para パラ turn, flip, leafing thru paper
pisha   slide shut
pon   pat
pu プブ pinch, pluck
puhaa   Phew!
ririri リリリ loud buzz, alarm, clang clang clang
shin   silence
shire   shrug - 'what's it to ya?' or 'so what'
sooo   slide
su lift, reach
to   step
waaa   waaaa! Cry of protest
yoo   oof! exertion
yoro   stagger
zabu ズブ thwap, whap
zaku ズク random crowd chatter