The baby vomited up its meal.

As you know, during the Avatar Community Meet-up in Los Angeles last month, all the participants came to our house one evening to have dinner, study a little Na'vi, hang out together, and have fun. For John and me, that evening was a real treasure.

Peyral treats a cool cooked meal like garbage.
(Peyral won't eat a cooked meal that isn't still warm.)

The Na'vi regularly eat dinner together around a communal fire.

He made his (i.e., someone else's) dinner.

He made his (own) dinner.

First we had dinner; afterwards we played (a game).

As always, the dinner they cooked tasted really terrible.

A: Do you want to have dinner with me?
B: Sorry. I've already eaten.

Little Kamun is having dinner.
(Kamun might be a little boy, but he might also be a huge adult Na'vi, in which case –tsyìp is ironic and/or affectionate.)