The termgiven to someone who continually exaggerates their own experiences in order to "beat" any quality of your own story. Often interrupting your telling to become the centre of attention
To eat junk food by placing a similar, but slightly different, piece of junk food on top of it. The eater then proceeds to bite both in one motion, hence completing a full fatbastard.
Damn, did you see Sean fatbastard those two doughnuts? Chocolate and Vanilla frosting for the win!
A commitmentphobic who carelessly or negligently mistreats daters as a direct result of said commitmentphobia. Ratbastardly actions center around lying, cheating, ending dating relationships irresponsibly.
After five months together he just stopped calling without an explanation. What a ratbastard!!