randalism 

Random acts of vandalism

I got charged in court for committing an act of randalism

randalism by viko87 May 15, 2011

Randalism 

Being stupid or dumb like randal.

That’s just pure randalism

Randalism by smithterms December 6, 2021

cultural vandalism

The act of partisan ideologues taking over entertainment properties and turning them into (typically poorly received) political agitprop.

Marvel and DC have been huge victims of cultural vandalism these past few years,

cultural vandalism by answerer5976 August 16, 2021

randalize

South Dakotan slang term originating from the Chamberlain/Oacoma area, circa 2002.

An act of gross incompetence which results in utter distaster. A wanton act of stupidity. Unintentional destruction brought about by sheer lack of common sense.

He thought it would be cool to repaint his car using fourty cans of spray paint, but all he did was completely randalize the damned thing...

Dude, if you leave that cheeseburger frying on the grill for half an hour, all you're going to do is randalize it!

If you don't put the drain plug back in the oil pan after you change the oil in the car, you're going to randalize the engine, idiot!

randalize by Steve Mueller July 9, 2004

Xandalism 

The act of committing vandalism while blacked out on xanax and booze. Xanax, a prescription medication used to treat anxiety, can cause memory blackouts of hours or even days when consumed with alcohol. Regrettable behavior such as xandalism inevitably ensues.

Person 1: Did you hear about Brice? He took a fist full of xanax and drank a pint of Jack Daniel's, then he got arrested for smashing a church window. He doesn't remember a thing!

Person 2: Damn, sounds like he some did xandalism then

Xandalism by 4highs October 23, 2019

Wikipedia Vandalism 

Wikipedia vandalism is an act of course where the user will add an irrelevant comment, remove all the text, replacing the text, adding links etc, which have nothing to do with the original article.

Person 1: Why the fuck are there Mario links on the fucking Sonic page on Wikipedia?

Person 2: Some faggot did Wikipedia Vandalism again.

Wikipedia Vandalism by WE HATE YOU TOTTENHAM October 18, 2016

Mandalism 

(sounds like it spelled). The religion consisting of Ian the messiah and the flying spaghetti monster, who has created everything in our world. Notable beliefs include: Thou shall not murder ,rape, steal, or play lacross. Also if thou wear crocks, thou shall be sent to the core of earth for an eternity.

Ian: I am the messiah of mandalism, we will except any followers, find our petition online.
Martin: Thank you messiah, your teachings have revolutionized my life.

Mandalism by wowlookoverthere September 20, 2016