Nouns

(n)tap, pat, daba light touch or stroke
(n)dab, splash, splattera small quantity of something moist or liquid“a dab of paint”, “a splatter of mud”, “just a splash of whiskey”
(n)dab, dabbinga dance move in which the dancer simultaneously drops the head while raising an arm and the elbow in a gesture that has been noted to resemble sneezing

Verbs

(v)dab, swab, swobapply (usually a liquid) to a surface“dab the wall with paint”
(v)dab, pathit lightly“pat him on the shoulder”
(v)dabto smoke marijuana using butane hash oil
(v)dabto perform a dance move in which the dancer simultaneously drops the head while raising an arm and the elbow in a gesture that has been noted to resemble sneezing