"Who was that masked man?" This is a reference to the TV series The Lone Ranger, that ran through the 1940s to the 1950s. This was a famous line from the show.
Darryl's use of the flash-bulb to stun the Grimlock recalls the struggle between James Stewart and Raymond Burr's characters in the 1955 film "Rear Window", directed by Alfred Hitchcock.
These quotes and Phoebe's costume are references to Elvira, Mistress of the Dark. Elvira is a character originally from the 1981 TV show "Elvira's Movie Macabre" played by Cassandra Peterson. She hosted horror films in a comedic way and become one of the most popular cult talk show hosts.