verb
dub
DUB/dʌb/
To give someone a name or title.
The king dubs the kneeling man a knight with his sword.

Etymology
Old English dubbian meant to bestow knighthood. The meaning broadened from conferring that particular rank or title to giving someone or something a name or title more generally.
In context
the outrageous Moon logic and level of what I can only dub as anti- deluvian guesswork present throughout the entire game
More examples
- Her teammates dub her "The Rocket" because she runs so fast.
- The local newspaper dubbed him a hometown hero.
- We dubbed our old van "The Beast."
Forms
dub · dubs · dubbed · dubbing
nickname noun — An informal name given to someone.