Forrest Gump moment
When a person unwittingly runs into and experiences/influences a historic event/person.
"I totally ran into Barack Obama before he ran for president. I told him that I need a presidential candidate who could offer change I could believe in. It was a Forrest Gump moment."
Forrest Gump Moment
When you say or do something stupid and don’t realize it until afterwards; Refers to the movie ‘Forrest Gump’ about a mentally challenged man.
That was my Forrest Gump moment of the day.