Good guess. That appears to be a character by Dross named Onyx, who is male.
https://www.patreon.com/posts/onyx-dross-oc-78426448 (locked behind Patreon)
https://civitai.com/models/309542/onyx-dross-character (AI link unfortunately, but shows the original image and names the character)
“Tap” is being used as a noun here. It took me a bit to get it.
To add context, here is a broad count of Karl’s video topics over the past year (going back to May 29th):
Celebrate: 8 (5.83 million views)
Bash: 13 (18.5 million views)
Billy (all negative): 12 (8.5 million views)
He’s definitely leaned more into the Billy drama / exposing cheaters & fakers over the past year. People seem a lot more interested in the “expose” videos, so unfortunately it makes sense for him to make more of those.
I can’t find anything backing that claim, but a Republican congressman did suggest it: https://www.youtube.com/shorts/1v3gM8yG91Q