look up any word, like fellated:
 
1.
if you know something in your heart of hearts, you are certain of it although you might not want to admit it.
I knew in my heart of hearts that something was wrong, but I just wasn't ready to deal with it. Do you believe in your heart of hearts that things will get better?
by Infinite2 July 29, 2008
 
2.
how could this not be defined. sorry I don't have time now, but hopefully I'll get around to it....
"Even though I've always believed I hated onions, I knew in my heart of hearts that it was all psychological. But it's just so easy to ignore it, since it's never been a problem anyway. That kind of 'psychology' is too much of a hassle.
by th3g1vr July 05, 2008