A style of music revolving around horns, guitar, bass, drums, and a vocalist. Chordal structure is that of upbeats or power chords. Some ska bands have trumpets like Reel Big Fish, some have trombones and saxes, like Mighty Mighty Bosstones, and some have two trombones and a French horn, like Sold for Less. Skanking
is the dancing done to such music, and is characterized by kicking those legs and punching the air and flailing.
Dude, I love to skank to that ska. I really dig that sound