SLAMITCH: ja si taky googlil ;)) ale ten tvuj je asi trefnejsi
The memberberries are the physical manifestation of the idiom "sour grapes", used to refer to a negative attitude to something because they cannot have it themselves.
At first, they appear to only remember pop culture from the 80's and 90's, mostly Star Wars, but they are shown to have a different side also remembering conservative and racist ideologies from those decades.