A vow taken by a pornstar, that when she gets married, she will only do porn scenes with her hubby, usually a male pornstar too, and not with another dude.
"While Jenna Jameson was married to Justin Sterling, she never fucked another guy in front of the camera"
1. Fidelity is the accuracy with which an electronic system reproduces the sound or image of its input signal.
Therefore the expression "High Fidelity" would indicate that a system, in the case of sound, is producing slick and high quality sound through its speakers.
Guys who are so into their investments portfolios that they have to wake up at looking at it....look at it couple times a day...and look at it right before they go to bed.