Colorful, but decidedly fierce.
He met a sea-horse, a metaphor of course,
For his lover, who liked to get pierced.
Note:
1. Mantis shrimp or stomatopods are marine crustaceans, ... also known as "prawn killers" in Australia and now sometimes referred to as "thumb splitters" – because of the animal's ability to inflict painful gashes if handled incautiously. Mantis Shrimp sport powerful claws that they use to attack and kill prey by spearing, stunning, or dismemberment. Although it happens rarely, some larger species of mantis shrimp are capable of breaking through aquarium glass with a single strike from this weapon." [Wikipedia]