Possible Clues:

• It's a plus to give birth
• Additional amount to restore mobile phone credit, for example
• Refill of drink
• Addition restoring former level
• Add more (to glass)
• Give more drink to the little dog?
• By the sound of it, fillet for the pot, perhaps
• A little more drink given to pet
• Supply a little to fill
• Provide a little more drink, perhaps, for dog