Full body shutter
This term originates back to the summer of
2007. Originally an involuntary spasm when touched by a disapproving female, it has since been adopted by others as a formal way to communicate "that's really
gross", or "that's
fucked up."
It can be used by males and females and should not be overused. If a person is incapable of shaking the entire body in disgust, they are not allowed to say "aww, fbs", and are excluded from the fan club.
Jen: OMG,
Stacey is giving Phil a
hug. That bitch!
Jon: Yeah but he's having an fbs, he's clearly not interested
Jen: What a relief! I'm glad fbs exist!
NOTE: The above example is based on an extremely true story. I swear.