gag

nouns

a humorous anecdote or remark intended to provoke laughter
"he told a very funny joke"; "he knows a million gags"; "thanks for the laugh"; "he laughed unpleasantly at his own jest"; "even a schoolboy's jape is supposed to have some ascertainable point"
is derived from
restraint put into a person's mouth to prevent speaking or shouting

verbs

prevent from speaking out
"The press was gagged"
be too tight; rub or press
"This neckband is choking the cat"
tie a gag around someone's mouth in order to silence them
"The burglars gagged the home owner and tied him to a chair"
make jokes or quips
"The students were gagging during dinner"
struggle for breath; have insufficient oxygen intake
"he swallowed a fishbone and gagged"
cause to retch or choke
make an unsuccessful effort to vomit; strain to vomit