Does this count as homebrew?

yourplayersaidwhat:

*meeting a guard npc*
Rogue: I give her the lesbian once over
DM: *rolls die* she just kinda shrugs, doesn’t seem interested
Like three players at once: oh she’s straight 😦
Rogue: what did you roll for?
Warlock: that was the kinsey roll
DM: yeah that was the kinsey roll