Father Christmas 
British
An imaginary figure said to bring presents for children on the night before Christmas Day, conventionally pictured as a jolly old man with a long white beard and red clothes. Also called Santa Claus.
- bloodsucking
- blood sugar
- blood-supper
- blood, sweat, and tears
- blood tale
- blood tax
- blood test
- blood-tested
- blood testing
- blood thinner
- bloodthirst
- bloodthirster
- bloodthirstily
- bloodthirstiness
- blood-thirsting
- bloodthirsty
- blood-tingling
- blood transfusion
- blood tree
- blood-tub
- blood typing
- blood urea
- blood urea nitrogen
- blood-vein
- blood vessel