
...which is Latin for "suck it, you lose."
The Big Bang Theory Season 3, Episode 2

Something about Latin music...
The Big Bang Theory Season 6, Episode 1

Fine. Wedding
toasts in Latin.
The Big Bang Theory Season 11, Episode 10

(LATIN MUSIC PLAYS OVER SPEAKERS)
The Big Bang Theory Season 1, Episode 3

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