Spiders or any other kind of bug that may be in a nasty lake while skinny-dipping. Named for the small but very frightening possibility that they may disappear into unsavory places on a girl's body where they will lay eggs that will hatch and emerge at a very inconvenient time and place.
The Spiders From Mars were David Bowie/Ziggy Stardust's three-piece rock band from 1971 to mid 1973, however they were only officially known by this name following the album's release in June 1972. Bowie has said that the inspiration for the name came when he was writing the song "Ziggy Stardust". The band consisted of:
Mick (Ronno) Ronson (Band leader, guitar, piano and vocals)
Mick (Woody) Woodmansey (drums)
Trevor Bolder (bass)
"...you're the blessed, we're the Spiders From Mars..." 'Hang Onto Yourself' (Bowie)