spineless jellyfish

A person who has no since of morality; (in extreme cases) a person without a conscience; one who does not care about the repercussions of his/her actions

Dude 1: Dude this hot chick asked me to take her out on a date and I totally stood her up bro lmao what a dumb bitch.
Dude 2: Wow man, way to be a spineless jellyfish.

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