'Quarantine = locked away from human contact to stop spread of disease.
Martini = a kind of cocktail (James Bond's favourite).
So quarantini = afancy drink made from things in your kitchen.
You make quarantiniswhen you are in lockdown, but still want to have fun.
A: I'm so sad. I miss my friends. I miss meeting new people!
B: Cheer up! Have a quarantini, and zoom me.