Slug, Tunguska and Buttocks

Include me among the people who don’t always get the artwork that accompanies Cecil’s columns. F’instance, Slug’s drawing for What caused the massive 1908 explosion in Tunguska, Siberia?

It shows a hole that might suggest a meteorite crater. So far, so good. It also has a flying saucer (?) And the saucer is apparently shooting an excavator in the buttocks with a death ray (?)
Of special note, is that this death ray has caused the man’s buttocks to jump out of his pants with a sound effect that is either “poom” or, from the flying saucer’s viewpoint, “wood.”

I read the column looking for some reference to something that would make you (something) “your ass off.” I’m not finding it.

But a distant memory seems to recall an odd, foreign word for the buttocks – something like katunkas. Is there such a word? Is Slug reaching for some pun between Tunguska and katunkas, or what is going on here, anyways?

(Moderators – if this is the wrong forum, please move. Thanks.)

(either everyone is as mystified as I am about that pitcher, or people thought this thread was about a law firm.)

Cecil mentions UFO’s in the column. Maybe the buttocks is a reference to asteroids.

Cecil mentions “an extraterrestrial laser beam” as one of the crackpot explanations for the blast. QED.

My guess is that Slug made a leap from “The Tungus Event” to “tuchus.” Tuchus is a Yiddish word, which I’ve probably spelled badly, for buttocks. So the mighty Slug has shown us The Tuchus Event.;j

Could be, but it was the Tunguska event.
I did find some references to katungus. Maybe Slug doesn’t know his tuchus/katungus from a hole in the ground?