Milk! is an item added to the The Binding of Isaac: Afterbirth DLC for The Binding of Isaac: Rebirth. It is a glass cup containing a half of milk.
- It appear as glass of milk familiar that follows Isaac and spills on the floor when they take damage.
- When the milk spills after taking one damage, the player will receive -2 tear delay (increased rate of fire) until they leave the room.
- After spilling, the milk will reappear in the next room.
- The item's quote is a reference to the idiom "Don't cry over spilled milk".