The latesttechnology allows you to sign for your purchases with the use of your finger. When you sign your name on an ipad or pad device with your finger, you are submitting your Fingnature.
This guy comes into my shop, and instead of using his finger to sign for his purchase, the idiot whips out a sharpie and signs the iPad! Now it's all fucking stained and shit! So I now hide all pens and tell people I need their fingature.
This is the signature you enter using your finger when you make a credit cardtransaction at businesses, stores, restaurants and other retail establishments that use tablets or other mobile devices.