Or really, any cocktail that contains half-and-half or heavy cream. See also Alcohol.
Yes, the show's trademark innuendo and misunderstandings could be funny, but what makes the show inherently funny is that the situation driving this situational comedy was a landlord who was tolerant of homosexuals but not unmarried cohabitation. Was there really a point in American culture when this was plausible? See also 70's, Homosexual, Sitcom.
"It doesn't make a difference what temperature a room is, it's always room temperature." - Steven Wright