Wiktionary
adv. (context slang English) exactly; directly; precisely; dead-center. alt. (context slang English) exactly; directly; precisely; dead-center.
Usage examples of "smack-dab".
Finally, the narrow-gauge spur line that ran up here into the foothills of the Cascade Mountains had deposited him in a place called Timber City, and when he had stepped off the train, he had found himself smack-dab in the middle of a melee between lumberjacks in lace-up boots, khaki pants, and red-checked shirts and cowboys in chaps and Stetsons and cowhide vests.
The first exhibition game of the season, I move the recliner smack-dab in the middle of the living room, and it stays there until the World Series is over and done.
Modesty and a sense of literary decorum forbids me from relating the rest of the scene, except to say that after she couldn't find no wounds on me I started pointing out where they were on her so she would have a firmer grasp of the situation, and pretty soon we were grasping each other so firmly that both of us plumb forgot about my wounds, and we might have stayed like that forever except that about four in the morning I woke up and started feeling kind of eleven o'clockish a good seven hours early, so I climbed back into my clothes and moseyed on down to the kitchen to see if I could scare up a little snack, and ran smack-dab into General Gruenwald and Lord Mayor Rembert, who were there sipping glasses of brandy.