I mean, it wouldn't be a very good subversion attempt if it was too obvious, but either way someone on their team must've known German very well to come up with that, because this is definitely a word you learn on the school yard, not in the classroom.
If it WAS a native speaker (as I'd suspect), I would lean towards thinking it was probably intended as an antifascist joke, because "ohne Mampf kein Kampf" (without food, no fight) is a humorous adage of the Bundeswehr that's basically the modern version of "an army, like a snake, marches on its belly".
Then again, one must one wonder who outside their (likely tiny) German audience would even get the joke at all.