Cheryl tells Toni she's been as clear as "a bottle of sparkling San Junipero water." San Junipero is an episode of Black Mirror where in a virtual town of that name two women from different backgrounds fall in love.
The character of "Kurtz" is inspired by the character of the same name from Apocalypse Now.
Kurtz is a character from the novel Heart of Darkness by Joseph Conrad, which the movie Apocalypse Now is based on.