To have extreme skills.
To be really cool.
The origin of the word "Hamhuisy" comes from Dan Hamhuis. Hamhis is a Canadian professional ice hockey defenceman. Dan has played defense for the Vancouver Canucks since 2010 and has played in the NHL since 2003.
He is a fan favourite and the city of Vancouver has adapted to this word when talking about, not only hockey, but everyday situations.
"Man, that goal was so hamhuisy."
"Dan is so hamhuisy!"