1) British style of music 
Breakbeat (sometimes breaks or breakbeats) can refer to two distinct but related things: It is both an electronic music genre and the distinct percussive rhythm from which this genre takes its name, usually characterized by the use of a non-straightened (percussion instruments do not play directly on beat) 4/4 drum pattern (as opposed to the stead...
Commercially, a post digital sampling music genre.
a syncopated jazz or funk rhythm of the sort sampled in hip hop music - Hip hop and dubstep use breakbeats, not disco beats.