Green’s Dictionary of Slang

shoobz n.

also shubz
[? popular doowop song chorus shooby-dooby]

(UK black) a party.

[UK]Jade LB Keisha the Sket (2021) 55: We gt 2 da hse dat da shubz woz bein held at.
[UK]G. Krauze What They Was 164: The brer and his team were trying to gatecrash a little shoobz.