jump (one's) bones
slang To engage in a sexual encounter with one, especially in an energetic or enthusiastic manner. Samantha was ogling the waiter and murmured crassly that she'd like to jump his bones. I could tell the two wanted to jump each other's bones, so I excused myself and left them to their own devices.
jump someone's bones
have sex with someone. North American vulgar slang jump (someone's) bones
Vulgar Slang To have sexual intercourse with someone.