Kiwi asks…
What does "water" mean here?
Answer from a Native speaker

Rebecca
Good question! 'Water' in this context, is used as a verb meaning 'to pour water over an object'. In this case, instead of pouring water, it's mentioning pouring blood. Ex: I need to water the plants. Ex: Did you water the cactus?
Listening Quiz
1/2 STEP LEARN