I'm getting old. I've never heard of any of this.

Daggering is a newly accepted name for an activity that has been present in Jamaica’s dancehalls for many years. It is roughly the equivalent of the Caribbean’s “cabin stabbing”, another crude style of music and dance. “Daggering is a dance that makes you unleash the beast! If you ain’t know what I mean think about every sex position and put it in a dance,” commenter Driva said of the dance.

But before you rush off to try it, be aware that authorities in Jamaica have banned daggering ... not because it's "rude" but because
Jamaican doctors were prompted to issue a warning on the dangers of daggering when presented with a range of fractured penises
Ouch.
(Via Kiwiblog)