Thursday Morning Riddle

I’m that unpleasant reflex that comes when you choke;
I’ve been worn on the mouth so that nought could be spoke;
I’m a present that’s funny — a practical joke;
And an order from courts that’s a secrecy cloak.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. Asher Says:

    Gag

  2. Bill Says:

    GAG is correct. Way to go, Asher!

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