No. We only call something a sign-up bonus if you get it for free, upon registration. Deposit spins or welcome spins if you want to call it that, can never be called a sign-up bonus. We will essentially be talking about a part of the welcome bonus or welcome package. I.e. it could be a case where you get bonus spins as your 1st deposit bonus. These offers do occur but are rare compared to the standard match bonus. Note: When they occur, they may still come in the form of a 100% deposit match.