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2.
Derived from the German word "furchtbar", meaning frightful, simply because one or more individuals thought "furchtbar" sounded like, seriously or humerously, "fuckbars". Its current use has no relationship to the source word; it is used as an expression of disappointment or, occasionally, anger.
1. Aw fuckbars, the toilet is stopped up again.
2. Fuckbars! That hurt!
by Funny-German June 24, 2012
 
1.
Noun

(1) Bar found on most passenger cars that is just above the doors that is usually firmly attached to the roof frame work. It's a multi-purpose device officially used for the exiting of the vehicle. In practice it's use to grab hold of while the driver takes unnecessary driving maneuvers.

(2) Grab bars just above the doors that are strategically placed for the act of sexual intercourse in the vehicle.

(3) What one might yell when holding onto the fuck bar when going into a ditch.
"Tims knuckles were white from hanging onto the fuck bar when Bob decided to go drifting in the parking lot."

"Nicki found that with the seats reclined, the fuck bars were in the perfect spot for her and Bob to be intimate"
by Ursan November 20, 2008