what do harvey and donna do with the can opener

Harvey and Donnas can opener ritual is a running gag in the TV show "Suits". The ritual is used to establish a strong bond and partnership between Harvey and Donna. The backstory of the ritual is that Harvey and Donna initially used whipped cream for their ritual, but it was ruined for them after they spent one night together using it. Hence, they had to make up the bizarre can-opener routine. However, the exact ritual that occurs with the can opener has not been discussed. In one episode, Donna says something like "You have a big case coming up and we still haven't pulled out the can opener". Harvey says that he doesn't feel ready yet. The can opener ritual was a favorite topic of conversation among audiences in the early years of the legal drama, but it got lost in the narrative as the years went by.