Bitcoin is the asset; gift is the occasion. Together the words describe a product people grasp immediately: a voucher, a card or a transfer meant for someone else. German speakers know gift from gift cards and vouchers in retail, so the English word reads naturally in a shopping context. The hyphen separates the two words clearly. The .de ending places the offer in Germany and signals a provider that serves German customers.
The name fits the consumer end of Bitcoin: first-time owners, family members and colleagues receiving a small amount. Typical projects include a gift card shop, a redeemable voucher code, a corporate gifting service for staff and clients, or an education-led starter kit that pairs a small balance with a short guide. It also works as a campaign address for a wallet app or broker.