scare the life out of
scare the living daylights out of
put the shits up someone
scarecrow
make someone's hair stand on end
freak out
scare the hell out of
geek out
do someone a frighten
scare the shit out of
scare the pants off
frighten the life out of someone
scare someone to death
fray
put the heart across one
worry someone sick
feared
give someone the shits
out of one's skin
terror
fearfest
spook
scare someone out of their wits
spook out
jump in one's skin
fear
put the fear of God into
overscare
panic
flay
panicmongering
warn
scaringly
send shivers down someone's spine
bescare
fearscape
fearfully
pant-wettingly
dreadnought
terrify
turn a hair
fearmonger
curl someone's hair
make someone's flesh creep
scare
quake in one's boots
have the wind up
paranoiacally
concern
brick it