beater

beater /ˈbiːtɚ/ noun
plural beaters
beater
/ˈbiːtɚ/
noun
plural beaters
Britannica Dictionary definition of BEATER
[count]
1 
: a device or tool that is used for beating something — see also eggbeater, world-beater
2 
: someone who repeatedly hits another person
3 
US, informal : an old car that is in poor condition