Colloquialisation of the word sphincter after one has suffered a donkey punch. The sphincter muscle coils away in a spiral motion somewhat reminiscent of the opening to a wormhole in science fiction films.
Riker: "Permission to giggle at that warp hole, Captain"
Jean Luc: "Make it so!"
Astronomers are today turning their telescopes in the direction of an exciting new discovery of a warp hole.