It's not "cuckoo" to use street terms because those are normal terms. They might seem a little odd to those unfamiliar with them, but it's just an alternative way of speaking.
OP, on the other hand, is going off on a rant about how they want the message "This character is queer and thus needs all the attention brought to it" like a fool, completely disregarding that explicit relationships have never been mentioned in any prior kits, only close synergies between such units (like Padme/Anakin). So yes, I find it a little cuckoo.