(chiefly colloquial, with 'of') Someone who or something that bursts, breaks, or destroys a specified thing.

A surname.

A male given name. / A male nickname. / (colloquial, variously expressing familiarity, admiration, or hostility) Term of address for a man.

plural of buster

(colloquial) Any task that puts a lot of pressure on one's lungs, making one out of breath.

plural of cunt-buster

plural of hash buster

(computing) A program or algorithm that randomly adds characters to data in order to change its hash sum, typically to get around spam filters.

plural of southerly buster

Any of several improvised mortars, developed in the 1990s by the engineering group of the Provisional Irish Republican Army