S01E02 Miyuki gives advice to Tsubasa Tanuma. Part of the advice includes the 'kabe-down', an original invention of Miyuki.
Wait no actually as Kaguya points out it's something that's been around forever, and it's called kabedon (壁ドン [かべドン]).
This particular translation of 'kabedon' is 'wall slam'. [I read on wiktionary that don (ドン) is actually literally an onomatopoeia (hence why katakana instead of hiragana or kanji is used I guess), but whatever.] Ok so what's the katakana (or hiragana/kanji?) for the 'down' in 'kabedown' ? Is it just ダウン (daun)? But in this case why is ダウン = slap ?