scare the hell out of
do someone a frighten
scare someone to death
frighten the life out of someone
scare the shit out of
make someone's hair stand on end
put the shits up someone
freak out
give someone the shits
scare the life out of
put the heart across one
scarecrow
flay
frighten the piss out of
make someone's flesh creep
spook out
spook
funk
scare the living daylights out of
fray
frightsomely
overfrighten
geek out
scaringly
scare someone out of their wits
jump in one's skin
frightfully
piss one's pants
put the wind up
crap one's pants
fearsomely
twist someone's balls
get in someone's hair
curl someone's hair
scare the pants off
out of one's skin
make someone's skin crawl
have the wind up
terrify
scare
get under someone's skin
alarmistically
terrorise
shuddersome
flaysome
spooking
hagride
tread on someone's toes
fearful
frighteningly
brushback pitch
scarily
frightsomeness
paranoiacally
put the fear of God into
squick
shirtfront
affronter
brick it
fearmonger
spookily
boo
wrack
creep-shame
give someone ass cancer
screw around
creep out
set up someone's birse
terror
bring out in a rash
frightfulness
get to
tarrify
warningfully
fearing
get someone's goat
get up someone's nose
trepidly
ghostly
menace
terrification
concern
get the wind up
startful
terrifyingly
overscare
terrorize
feared
flip shit
comb someone's hair the wrong way
gloppen
spooksome
tremble
chap someone's hide
run scared