dab

nouns

a light touch or stroke
dab, pat, tap
a small quantity of something moist or liquid
"a dab of paint"; "a splatter of mud"; "just a splash of whiskey"
dab, splash, splatter

verbs

apply (usually a liquid) to a surface
"dab the wall with paint"
dab, swab, swob
hit lightly
"pat him on the shoulder"
dab, pat