beller m or f (plural bellers, diminutive bellertje n ) (telephony) caller, someone who calls in.

What does Booter mean?

In the world of IT security, a booter is a type of service that delivers distributed denial of service (DDoS) attacks for customers. It is a frightening part of the black hat world of cyber warfare that security professionals are concerned about.

What is Buller?

bull·​er | \ ˈbu̇lə(r) \ plural -s. Definition of buller (Entry 4 of 5) : a cow or heifer constantly in heat : a bovine nymphomaniac.