overshock
overscare
reel
overreact
overpulse
jolt
overfrighten
make the angels blush
regrate
overemotionalize
stun
jar
macroshock
overprovoke
overfanciful
overtheorize
skrik
alamak
shake
something fierce
overseverely
whiskey tango foxtrot
shockingly
splurt
frighten the life out of someone
poleaxe
overintensely
drastically
scare someone to death
furiously
overtill
alarmingly
make someone's jaw drop
catcall
overhysterical
maddingly
overagitate
oversensationalize
overalert
enormously
overgrievous
have kittens
over-egg the pudding
superdrastic
scream bloody murder
breath-catching
have one's wig snatched
blow a gasket
flip out
knockdown