When someone is wrong or says a dumb comment.

“Yeah you can Hold It”
“Hold It”
“Hold that L”

When you think up something brilliantly righteous while baked.

another way of sayin, 'goodbye', 'lata' or '1'

1) What attorneys (usually the defense) say during a cross-examination when they question the witness in the Ace Attorney series
2) What a person says to stop something from happening in the Ace Attorney series (a voice clip usually won’t play)

in gimme my gots she says hold it as in your bending down waiting for a boy to come hump/fuck you

A word which is often used for saying goodbye

What my high school teacher used to say to anyone who asked to go to the head to empty a very, very full bladder.
His brother was a sergeant in the army and he used to say, "just hold it in until we stop running about 4 hours from now."