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Interesting fact: "irritable"
comes from the Latin,
The Big Bang Theory Season 12, Episode 6
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In Latin."
In Latin.
The Big Bang Theory Season 3, Episode 2
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about Latin music,
I mean, I don't know how you feel
about Latin music,"
I mean, I don't know how you feel
about Latin music,
The Big Bang Theory Season 10, Episode 15
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...which is Latin for "I'll suck nothing."
The Big Bang Theory Season 3, Episode 2

Well, putting aside the pig Latin...
The Big Bang Theory Season 4, Episode 3