You can't be talking about weird things in comic books without mentioning The Eraser:
Yeah, he doesn't actually do that. Which is kind of a shame, because that would be hella cool. Wasn't there a character somewhere that did that sort of thing? Well... although it should have been The Eraser, because... you know, THE ERASER.... this is more of a metaphorical image than what actually does.
This is more along the lines of what The Eraser actually looks like in combat:
Which is why they went all existential on the cover, because that image sure wouldn't have sold comics.
Why is he The Eraser?
So he was an eraser like the character in that Schwarzenegger movie, only this guy dressed the part. And I've got to tell you... when Robin is calling you out on your ridiculous get-up, you have crossed a line what isn't going to be erased.
His awesome raison d'etre?
Really? You must be completely incapable of taking criticism for it to drive you to a life of crime like that.
Okay, what does that have to do with erasing things? Cheater.
That's the problem with having your weapons on your shoes: There's no way to attack someone without being completely off balance and looking silly. Like this guy.
Robin: A One-Man Sound Effect Theatre! (tm!)
Yeah... if you go around wearing that get-up, expect it to get smushed on your head. You gave up on dignity the minute you wore an eraser on your head and dressed like a Number 2 Yellow.
And now, Advice Not Worth Repeating (tm!)!
This has been Advice Not Worth Repeating! (tm!)
See you tomorrow!