Originated from the Australianrugby player, John Hopawate, who was suspended from playing rugby in Australia for inserting his index finger up an opponents backside.
"Woah mate you better watch out for John, he'll chuck a hopawate while you're not looking"
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi