The original name was inspired by Chappy the rabbit, a mascot that Rukia from Bleach enjoyed.
I was infatuated with Rukia when Bleach came it, so it felt right, but everyone assumed I was being cutesy and didn't get the reference. It was funny though when the Chappie movie came out and the mods were dumb enough to think they were shout-out threads >
Chaps came out as a blogging pseudonym when I did anime blogging with some of the Other Anime posters. I shortened it so it was more unisex, but it also had an a English vibe to it that sounded cool.
Then I think I used El Chapo because it was edgy, topical, and kinda had my name.
imchapp.in is a riff on the URL for this site, and have since stuck with it cause I couldn't think of anything else.
If Viper makes his site, I'd join as MingeBinge