on the off chance
US /ɑn ðə ɔf tʃæns/
UK /ɑn ðə ɔf tʃæns/
1.
just in case; with a slight possibility
:
•
I brought an umbrella, just on the off chance it rains.
•
She called the restaurant on the off chance they had a cancellation.
just in case; with a slight possibility