1) A moment where an incompetent teacher, who likes to flaunt his flawed knowledge on submarines, does something stupid.

2) Interjection used to mock said type of incompetent teacher
Incompetent teacher: "I know this story about a French submarine which..."

Students: "That submarine wasn't French. It was Spanish. This is such an ubådsmoment."
by verygoodpseudonymyesyeshahaha September 6, 2023
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