BEATER

[noun] [C]A beater is a device which is used for repeatedly hitting something, esp. in order to clean it, or for mixing esp. foods. Beater is often used as a combining form.an electric beatera carpet-beateran egg-beaterBeater is often also used as a combining form to mean a person who repeatedly hits people, esp. members of their family.a child-beatera wife-beaterA beater is also a person paid by hunters to force birds and animals into a place where they can be seen and therefore shot.