Slashing in English means cutting out or slicing, that is to say, it is the act of cutting something off or removing a piece of something from a whole. Like removing a slice of Pizza from a full. Therefore, the slashing mechanism of the Crypto world borrows this idea.

Your example is very easy to understand because I agree with you that if there is a pizza available to you and you cut one piece from that pizza for full feeling your hunger than it means that you are cutting down or you are slashing a piece of pizza as well as if you talk about Crypto world it is cutting of tokens of validators as a kind of punishment due to his malicious activity.

The implementation, rules, penalties, and criteria for slashing may vary with each blockchain network. Nevertheless, the prior goal is to incentivize users to behave honestly and to prevent vicious actors from sabotaging the network.

I totally agree with your conclusion which is impactful to me because you have explained in it that slashing varies from blockchain to blockchain but main goal and main purpose to implement this mechanism is to provide security and more honest environment at a blockchain I wish you success and would like in your participation in which you put your maximum efforts.