八婆联军侵校战争
[bā pó lián jūn qīn xiào zhàn zhēng]
Here '八婆' (literally gossip women) suggests people who are gossipy or busybodies, and this phrase humorously portrays a scene in which these gossipers launch 'warfare' within a school setting, likely to imply lots of talking and spreading of gossip happening among people there, reflecting perhaps lively but chaotic communication within the community.