Big cat

I think he's holding a little 250ml bottle of water, but now I kinda want a Klondike bar
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Edit: I zoomed in and it says Milk, maybe? Idk, now.

Its milk

They have barbs which allow them to cleans meat from bones, but they also lick their cubs to bathe them, do I believe it is something they control, possibly by the position/way they shape the tongue as they lick.