Phoebe Waller-Bridge said that she was looking for an alternative word for "fuck", as BBC America has rules for its use. She eventually found the word "dickswab" on the internet and, while googling how common it was, actually found a person called "Dick Swab".
Phoebe Waller-Bridge was nominated for the 2018 Emmy Award in the Outstanding Writing for a Drama Series category for Nice Face (2018), but lost to Joel Fields & Joseph Weisberg for The Americans' START (2018).
The postcard from Tuscany says "Miss you" and is addressed to "Mlle Lefebrve". "Mlle" is French for Miss, and Lefebrve would appear to be a misspelling of the French last name Lefebvre.