“Yeet” is passé. “Ye” has entered the common vernacular as an affirmative response.
“Pog”, “big pog”, and “poggers” (expressions of happiness or approval) have become common enough that the teens don’t think it’s too weird if Dad says them.
“F in the chat for <thing>” (paying respect / acknowledging something that died or failed) is still new enough that Dad gets weird looks when he says it. Multiple attempts result in Dad being told he is “trying too hard”.