All The Tropes Wiki Project, Part XVI

[Dartz]

Do we have a trope about saying the wrong thing at exactly the wrong time?

Asking because of this bit from More Things Involving Shipgirls That Are No Longer Allowed, Chapter 195:

Everyone stared at the octopus. San Juan stared at the octopus. The octopus stared back. The arms, San Francisco guesstimated, were a good twenty feet long. Unbidden, probably the worst thing she could have said slipped out of her lips.

"I've seen enough hentai to know where this is going."

That was when the screaming started.

Tempting Fate?

There's always Foot in Mouth Syndrome