In a book I'm currently reading, a character talks about putting some coffee on the hob "to perk". I hadn't heard that use of the word "perk" before but it obviously derives from "percolate".
But then I realised... Central Perk (the coffee shop in Friends)!
Obviously I got the "Central Park" bit of the pun but it has taken me 25 years to get the "Perk" bit.
AIBU to think I can't be the only one not to have twigged?