Green’s Dictionary of Slang

bar-up v.

1. (N.Z. prison) to take an amphetamine-type drug.

[NZ]D. Looser Boobslang [U. Canterbury D.Phil. thesis] 13/2: bar up 1 to take speed.

2. (N.Z. prison) to have sexual intercourse.

[NZ]D. Looser Boobslang [U. Canterbury D.Phil. thesis] 13/2: bar up 2 to have sexual intercourse.