cut to the quick 

to hurt deeply, usually in an emotional way. References the quick of a fingernail or claw and the pain that results when the nail is cut back too far and usually bleeds

Susie Mae's stealin' my boyfriend/brother just plain cut to the quick.

cut to the quick by Walking Colloquialism April 1, 2004

cut to the quick 

skip the fluff, tell whats important.

Georgie: bla bla bla bla bla
Reese: Cut to the quick Georgie, i havent got all day.

cut to the quick by crayola March 30, 2004

Cut to the quick 

Fuckin' in the butt.

Man you really cut to the quick, my ass hurts like the dickens, just like that time Mac Brown cut me to the quick!

Cut to the quick by anal n gus October 18, 2008