To deliberately kill (a person or persons) without justification, especially with malice aforethought.
The woman found dead in her kitchen was murdered by her husband.
To defeat decisively.
Our team is going to murder them.
To kick someone's ass or chew someone out (used to express one’s anger at somebody).
He's torn my best shirt. When I see him, I'll murder him!
To botch or mangle.
To devour, ravish.
I could murder a hamburger right now.
That has been murdered.