before you can say knife
before you can say Jack Robinson
apace
nineteen to the dozen
with a quickness
at speed
mile a minute
at a rate of knots
prestissimo
in no time
like winkin
full pelt
in quick sticks
full tilt
like a rat up a drainpipe
briskly
hot
good lick
fastish
fast
fastest
velocious
quickest
exponentially
faster
nippy
quicker
volley
before one knows where one is
velocitous
swift
quicker than scat
splitting
superspeedy
forthright
lightningly
by the minute
zippy
blazingly
sharpish
rapid
lightning fast
quick as a flash
quickly
speedingly
pacey
feverishly
headlong
like the wind
high-tempo
hand over hand
like shit through a goose
hasty
lickety-split
quicksmart
speedily
jildi
furiously
quick as a wink
chop-chop
smartly
on the pdq
one-two-three
with dispatch
off like a prom dress
whip and spur
superquick
faster than Minute Rice
semifast
blazing
blistering
at full tilt
double quick
double time
hurried
in a jiffy
like a dose of salts
like sixty
smartish
quicklike
in short order
storm out of the blocks
fastly
double-quick
mile-a-minute
rapidly
overspeedy
A.
thirteen to the dozen
streak
post-haste
quick
toot suite
flying
fast-flying
fleeting
like winking
posthaste