v. & n. colloq.
--v.intr.
1. pry into matters one need not be concerned with.
2 (often foll. by about, around) investigate in order to find out transgressions of the law etc.
--n.
1. an act of snooping.
2 a person who snoops; a detective.
Derivatives:
snooper n. snoopy adj.
Etymology: Du. snoepen eat on the sly