1. When something happens that reminds you of an embarrassing, difficult, or so-disturbing-that-you'll-never-be-able-to-unsee-it event in your life.

2. Actual flashbacks to actual battles. Can happen with PTSD.
Oh my god, that was the same position my parents used when I walked in on them as a kid. I'm having war flashbacks!

Don't you trigger a war flashback, son. I once killed a man!
by flipflopdrop July 3, 2013
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A flashback of a traumatising or embarrassing memory.
Bob: Hey, remember our tenth grade geography teacher? She was so hot!

Joe: I still have Vietnam war flashbacks of when she caught me staring at her huge tits...
by moldovaball January 31, 2018
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