[Hemospectrum]

There's an anime character who ends every sentence with です (as I described above). GP is probably referring to a famous internet meme where that's the only word she knows.

Some context: http://knowyourmeme.com/memes/desu

[darkestkhan]

Never heard about it. Maybe I should come out from woodwork from time to time.

[christiangenco]

Yup.