Weegeeboi asks: 

WHO ARE THESE PEOPLE?

FRISK: wut...?

INK: i t-think he/she m-means the A-Aus...

FRISK: OOOOOOH!!! well they are from AU's, witch are Alternate Universes

SWAP SANS: YES!!! THE MAGNIFICENT SANS AGREES!!!

Author: guess we needed to make that clear '~' anyways, shoutout to @Weegeeboi for asking all these questions!