1 : to make an item partially inoperable by reckless misuse
2 : to botch or bungle an event by acting with wanton disregard of another's rights
3 : to remove value from something in otherwise good condition
4 : to dismiss one's own bad behavior with a fallacious self-referential attitude
5 : to badly mess something up
That drunk ex-boyfriend of the bride really krizzled the whole wedding ceremony when he stood up and started ranting about their past together.