Green’s Dictionary of Slang

Barry White n.

[rhy. sl. = shite n. (2); ult. US soul singer Barry White (1944–2003)]

1. an act of defecation.

[Ire]G. Coughlan Everyday Eng. and Sl. 🌐 barry white : going for a shite eg. I’m going in to see barry white.
[UK]B. Dark Dirty Cockney Rhy. Sl.

2. excrement.

[Scot](con. 1980s) I. Welsh Skagboys 27: Fuck your family, ya fud-faced bag ay Barry White.