TV series example of the word

The Big Bang Theory Season 1, Episode 14
<font color="#E86CE4">(LAUGH ING)</font>

The Big Bang Theory Season 8, Episode 19
Ooh, I like to laugh, but say it anyway.
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The Big Bang Theory Season 5, Episode 13
(both laugh)

The Big Bang Theory Season 2, Episode 6
<font color="#E86CE4">(LAUGH ING)</font>
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The Big Bang Theory Season 10, Episode 13
Are you gonna laugh at the answer?