What is the meaning of To_go?

Served in a package or takeout container so as to be taken away from a restaurant rather than eaten on the premises.

Remaining. To finish. (In a group of events or items) belonging to the subgroup that have not passed or have not been finished or have not been addressed yet.

Used other than figuratively or idiomatically: see to, go.

to go; appended to noun phrases to indicate takeaway meals or takeaway establishments

Source: wiktionary.org