Definition of go-bag in US English:

go-bag

noun

trademark
  • A bag packed with essential items, kept ready for use in the event of an emergency evacuation of one's home.

    • ‘We will need Ainsley's go-bag.’
    • ‘On the bimmer's backseat bulges his 50-lb. go-bag.’
    • ‘He sat at the island in the kitchen, the bag they'd termed Ainsley's "go-bag" since her infancy, in front of him.’