O.B.’s, n. — Green’s Dictionary of Slang

O.B.’s n.

[abbr.]

(S.Afr.) Old Brown sherry (cf. obies n.).

1979		informant in DSAE (1996).
1987		Fair Lady 18 Feb. 92: We set off down the N2, then Clarence Drive, with Juluka blasting and a bottle of OB’s, responsible second years [DSAE].
1990		informant in DSAE (1996).