a pointlike kiss
"Back in April 1981, N. David Mermin wrote an article for Physics Today, describing his successful battle to introduce the word boojum into the scientific literature. The term describes, appropriately, a topological null defect."
"In the midst of the word he was trying to say,
In the midst of his laughter and glee,
He had softly and suddenly vanished away—
For the Snark was a Boojum, you see."
Based on the theme Through the rabbit hole proposed on the Scifaiku list.