(n.) A name given to several species of flounders, esp. to the European species, Pleuronectes limanda. The American rough dab is Hippoglossoides platessoides.
(v. i.) To strike or touch gently, as with a soft or moist substance; to tap; hence, to besmear with a dabber.
(v. i.) To strike by a thrust; to hit with a sudden blow or thrust.
(n.) A gentle blow with the hand or some soft substance; a sudden blow or hit; a peck.