Amaltheren

"mama kupila traktora" ("mom bought a tractor") is a reference to lukashenka's gift to putin for his anniversary - a tractor

"trajna-nina, armageddon-nona" - nonsensical, nursery-rhyme-like fragment with the word "armageddon" in it (because for SOME PEOPLE, armageddon (= nuclear threats) is just like a child-play)

"mama ljubila morona" ("mom kissed a moron") - "mama" is actually Mother Russia. I don't think I need to explain who's the moron.

"mama, ja se idem igrat', mama, idem u rat ("mom, I'm going to play, mom, I'm going to war") - self-explanatory

"onaj mali psihopat, mali, podli psihopat" ("that little psychopath, that little, vile psychopath") - if you know who's the moron, it's also self-explanatory

their costume - mixing military-style uniforms with make-up and skirts - actually makes fun of russia's anti-lgbt+ policies :)