raffle off (something)
To give something away as the prize of a raffle. (A raffle is a lottery in which a number is drawn at random that corresponds to one given to a participant.) As part of the fundraiser, our church is raffling off a brand new jet ski. We raffled off 10 tickets to the latest Broadway musical to help pay for our trip to Rome.
raffle something off
to give something away by a drawing or raffle. They will raffle a television set off. They are going to raffle off a television set this weekend at the school.
raffle off
v. To offer something as a prize in a lottery in which a number of persons buy chances to win: The theater is raffling off tickets to its upcoming plays. The school raffled a new car off to raise money for a new swimming pool.