abstract
bleed
bleeding
blob
blood
bloodstain
bloody
blot
brush
crime
dirt
dirty
dribble
drip
dripping
drop
droplet
fake
flow
flowing
fluid
gore
grunge
grungy
halloween
horror
ink
leak
paint
pattern
red
ruby
run
runny
sauce
silhouette
smudge
spatter
spill
splash
splat
spot
spray
stain
surface
texture
wall
watercolor
wet
wine