Sepulki

Sepulkas, also renditioned as sepulcas, and called scrupts in English translation,"Scrupts"
at the FAQ page of Lem's official website are unclearly defined fictional objects found in works of Polish science fiction writer Stanisław Lem, ''The Star Diaries'' and '' Observation on the Spot''. A fictional encyclopedia lists them as "objects used for sepuling".

In-universe sepulkas

Sepulkas were first mentioned by Lem's interstellar traveller Ijon Tichy in his fourteenth voyage. It is, however, never explained what they actually are and what their use is.

The ''Encyclopaedia Cosmica'' gives the following definitions on the subject:

*Sepulka – pl.: sepulkas, a prominent element of the civilization of ''Ardrites'' from the planet of ''Enteropia''; see "''Sepulkaria''"
*Sepulkaria – sing: sepulkarium, establishments used for ''sepuling''; see "''Sepuling''"
*Sepuling – an activity of ''Ardrites'' from the planet of ''Enteropia''; see "''Sepulka''"

Although omnipresent in art and commercials of the alien civilisation Tichy visits, discussions of sepulkas is a major taboo and all of Tichy's attempts to learn about them are seen by the locals as a ''faux pas