When a guy/girl fails at getting action or maintaining a relationship with a person, he/she won't find others as attractive as said person. The strength/length of fail goggles is dependent upon time and emotional attachment.
Guy - "I just don't find her that attractive."

Friend - "Dude, you just broke up, so you have the fail goggles on. She's a 10 and I know you'd normally agree with me."
by kanji_sasahara October 24, 2011
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