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2.
The south african attempt to laugh like mr hanky the christmas poo. Also used to impersanate anyone who finds something humorous which in reality isn't.
Then i said, i left the cheese in my beret... how how, how how, how how
by Bonecrusher August 22, 2003
 
1.
An interjection indicating approval, congratulations, or gratitude. Common especially in Laurentian mountains of Quebec, Canada.
James: Hey Rodney, how did your water test go?
Rodney: I passed! I got my third in Campcraft!
James: How-how!
by Chad_Reiss February 11, 2006