Dab1  —v. (-bb-) 1 (often foll. By at) repeatedly press briefly and lightly with a cloth etc. (dabbed at her eyes). 2 press (a cloth etc.) Thus. 3 (foll. By on) apply by dabbing. 4 (often foll. By at) aim a feeble blow; strike lightly. —n. 1 dabbing. 2 small amount thus applied (dab of paint). 3 light blow. 4 (in pl.) Slang fingerprints. [imitative]