The term 'Twist Spinoff' refers to a dance move that was popularized in the 1960s. The dance move is a variation of the Twist, which was a popular dance move at the time. The Twist Spinoff involves spinning around while doing the Twist. The crossword solution for this term is 'WATUSI, ' which is a dance move that was popularized in the early 1960s. It is a variation of the Twist and involves spinning around while doing the Twist.