gag

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"

restraint put into a person's mouth to prevent speaking or shouting

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