dab (
http://definr.com/dab)
n 1: a light touch or stroke [syn:
tap,
pat]
2: a small quantity of something moist or soft; "a dab of
paint"; "a splatter of mud" [syn:
splash,
splatter]
v 1: apply (usually a liquid) to a surface [syn:
swab,
swob]
2: hit lightly [syn:
pat]