Wiktionary
one-two-three
adv. quick.
Usage examples of "one-two-three".
Lyons leveled the Colt, fired a hollowpoint slug into the chest of each astounded terrorist, one-two-three, shock slamming their bodies back.
He launched a one-two-three combination, sword-dagger-sword, in the blink of an eye.
And there's no comparison to that mindless one-two-three the physicists putter around in.
The score climbed against them—six Sarenn runs in the seventh, seven in the eighth, with the brief one-two-three interlude of the Teddies at bat hardly noticeable in the Snakes' slugging festival.