@the1woomy
I've found that when you do something that has some previously unknown connection to Bad Stuff, the best course of action is to just kind of go "oh wow that sucks" and then move on from it and not do it again. it's virtually impossible to know every connotations of every single thing you say or do, and feeling guilty about it isn't really productive. better to just acknowledge it and adjust going forward. better for your mental health and better for the world imo.
all this to say, don't worry about it too much. you're a sweet kid, you didn't mean anything wrong by it, and you're not going to make the joke again, so it's no big deal. it's inevitable that you and everyone else here will end up in this same situation a bunch of times throughout our lives, and that sucks but it's also just how it is
the epilogues are the best part of homestuck