What was your worst (best) slip of the tongue?

Was fighting with my younger sister when we were around 8 and 10'is.

I had just rewatched the skate video Bordhouse The End.

Favorite part was Heath Kirchart and Jeremy Kleins section when they crashed the hook ups van, died and skated to David Bowie and Queen.

Said sister was laying on her back kicking me in the back while im sitting and watching. I have enough and turn around grab her knees and pull them apart to punch her in her stomach, only I began to sing the song in the sk8 video when the skaters enter the mansion.

That song began with "open up those pearly gates"

Mom was watching. Horrified.

"SKIDMARKS! WHAT ARE YOU DOING!"

Me, confused: "what?"

Look at sister, both of us confused, so I slug her, life goes on.

The cringe still hurts to this day, and we all never spoke of that again.

/r/AskReddit Thread