Jiff

I'll be out in a jiff.

Oh, yerss. Come in. Half a jiff till I finished this bottom stair. Now then—whoa!—don't touch that banister; it's a bit loose.

You can keep Max company while I nip out for a jiff.

Tell my man, “The usual, plus a shot for the kid” / He did his bartender thizzle, got my order in a jif

A lady's voice answered, “Be out in a jiff.”