Popular hashtag used on tik tok no one really knows the meaning...
Because there is no meaning

Intelligence agency term for "psychological operation". A government or corporate-sponsored operation, usually taking the form of a "terrorist attack" or "crazed gunman on a spree", with the intent of panicking the public into demanding more police and laws inhibiting freedom. Psyops are usually carried out by drugging a civilian or group of civilians with aggression-promoting drugs, psyching them up, arming them, and sending them out to commit mayhem. Government-sponsored terrorism. See also blackshirts, conspiracy

Hashtag for thirsty humans

Some may say it has no meaning, and was a product of a tiktok hashtag. On the contrary.

Xyzbca is an acronym originating from the traditional term xyzpdq (examine your zipper pretty damn quick) used in reference for your zipper not being done up.

Xyzbca means examine your zipper because your cock or crotch has appeared due to your zipper being undone

Xyzbca