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1.
unreasoning fear of or antipathy toward bisexuals and bisexuality.
When someone says: "I don't date bisexuals because they are dirty, slutty and cannot make up their mind already." that person is displaying biphobia.
by wordmistress August 21, 2009
46 15
 
2.
An unreasoning fear of tandem bicycles.
"He was having fun at the bicycle parade until the tandem bicycles started to go past, then he became scared because of his biphobia."
by The__Doug April 25, 2009
13 23