Pseudonym Any-mouse

Housing challenged obscure rodent
Lived in a hole with no room to swing a cat
Poet mouse grammatically misspelled anonymous with intent
Didn't literary credit given to any rat

Wasn't seeking poet laureate fame
Just simply wanted to write poetry
Mainly about daily cat and mouse game
Is what inspired it mostly

Lo and behold there were more mice writing poetry
Inside walls of every university
Graffiti above hole in the wall of each library
Disclosed mice were writing poetry inconspicuously