A form of laughter used by the English actor Tom Hiddleston. Often accompanied by throwing ones head backwards and showing as much teeth as physically possible. Used commonly by his fans, the 'Hiddlestoners' on social media websites such as tumblr. If you are a fan, the written form of laughter is enough to connect it to Hiddleston.
"You just got Loki'd again, ehehehe"- Tom Hiddleston