This is a more offensive way of calling someone of fucker. The person saying it is very angry and the person being called it has done or said something very stupid.
A term of endearment that a wife called her old man. It's nice to wakeup in the morning with a kiss and hug, with love you fucker face fucker. So you give her a pet name like (cum guzzling sewer slut)
An endearing term for a friend that is having a much better day (or life) than you, and probably started their day off by waking up to the ole felatio alarm clock followed by a bountiful breakfast in bed including hot gourmet coffee in a fancy hipster mug that has the same logo as the t shirt they slept in.