This means "I'm going to eat dinner/supper" or similar.
Cenar means Dinner.
Yo voy a cenar en las vacaciones de primavera con mis amigos en Florida
"Voy a llevar" in English means "I am going to take."
Dinner.
Voy means "I go".
It means I go, I am going
It means "go to bed"
I am going to the stationery store
It means I am going to stay.
I will not dance tonight.
What am I going to do with you
'Pero yo voy a dormir' means 'But I am going to sleep.'