In kayaking, rafting, canoeing, and catarafting when a person and/or their craft is thrown about violently in a hydraulic feature of a river for a long time. Long time, being a relative term referring to longer than you can handle, which can be less than 15 seconds. Usually the craft is recirculated back into the hole several times, leading to a feeling that escape is impossible. Characterised by a complete loss of perspective with respect to the world and commonly followed by a swim.
I totally got chundered in that hole.
Dude did you see that punter raft get chundered in hellhole.