We can’t leave this to the usual suspects to name. They name all male activities pretty badly. “Football?” Come on, that’s tantamount to insinuating that placekickers are important or vaguely masculine. They shoulda named it headbonking, or concussion derby, or “I’m not holding, honest.”
We could call it sluicing. Nah. How about guttering? No, that one’s taken for the morning after Saint Patrick’s Day. Weir jumping. I like that a bit. Grinding my kayak down to a nub has too many words. Canal crashing? Channel slamming?
I know. Ditch-it-deroo.
(Thanks to Gerard at American Digest for sending that one down the pipe)