war flashbacks 

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!

war flashbacks by flipflopdrop July 29, 2013

Vietnam war flashbacks 

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...

Vietnam war flashbacks by moldovaball January 31, 2018