glass
v.— «I began glassing the large hay field for my first victim. Since it was really hot, the chucks had enough sense to stay underground, but I kept right on glassing (as it is called in varmint vernacular) the hay field.» —“Varmint hunters need right scope” by Don Lewis Leader Times (Pittsburgh, Pa.) Apr. 15, 2005. (source: Double-Tongued Dictionary)