Sarawr: Watch the Ent coming up later, he throws his head in the water. It's so funny.
about ten minutes later
Alicia: Can he live without his head?
Alicia: Can the Ent live without his head?
Sarawr: I mean... probably not. I don't really know though.
the part where the Ent is on fire and douses himself in the flood from the broken dam
Sarawr: See? Ahaha! [mimes the Ent in the water]
Alicia: Oh... I don't think he ripped his head off, though. I think he just ducked his head under the water.
Sarawr: Yeah, that's what I--wait a second...
And now you know! Throwing your head in something has TWO MEANINGS!