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3.
1. Problems that, when serious, cause failure or the symptoms of failure.

2. The #1 cause of fagalism in the U.S.

3. Elton John,jk.

4. The STD known to make you suck.
1. 9 out of 10 people failed today because of foibles.

2. Only you can stop fagalism by preventing foibles.

3. No.

4. Mary broke up with John because of his foibles.
by AwesomeMatt/ipwnu/rumymommy69 August 06, 2009
 
1.
Mistake.
What a foible.
by Typhlosion July 30, 2003
 
2.
To make a mistake directly causing the failure of a plan or action. Portmanteau of Foil and Fumble.
The Green Shift idea was a major foible for the Canadian Liberal Party in 2008.
by Death Monkey April 04, 2009